diff --git a/mindspore/lite/nnacl/common_func.c b/mindspore/lite/nnacl/common_func.c
index ec6e632a89..10edd92619 100644
--- a/mindspore/lite/nnacl/common_func.c
+++ b/mindspore/lite/nnacl/common_func.c
@@ -15,7 +15,6 @@
  */
 
 #include "nnacl/common_func.h"
-#include "nnacl/quantization/fixed_point.h"
 
 int offset(const int *shape, const int dim0, const int dim1, const int dim2, const int dim3) {
   return ((dim0 * shape[1] + dim1) * shape[2] + dim2) * shape[3] + dim3;
diff --git a/mindspore/lite/nnacl/fp32/conv.c b/mindspore/lite/nnacl/fp32/conv.c
index 4ad11f31a4..570aa39ceb 100644
--- a/mindspore/lite/nnacl/fp32/conv.c
+++ b/mindspore/lite/nnacl/fp32/conv.c
@@ -21,7 +21,7 @@
 #include "nnacl/fp32/matmul.h"
 
 // fp32 conv common
-void ConvFp32(float *input_data, float *packed_input, const float *packed_weight, const float *bias_data,
+void ConvFp32(const float *input_data, float *packed_input, const float *packed_weight, const float *bias_data,
               float *col_major_input, float *output_data, int task_id, ConvParameter *conv_param) {
   int kernel_h = conv_param->kernel_h_;
   int kernel_w = conv_param->kernel_w_;
@@ -70,7 +70,7 @@ void ConvFp32(float *input_data, float *packed_input, const float *packed_weight
 }
 
 // fp32 conv winograd
-void ConvWinogardFp32(float *input_data, const float *trans_weight, const float *bias_data, float *output_data,
+void ConvWinogardFp32(const float *input_data, const float *trans_weight, const float *bias_data, float *output_data,
                       TmpBufferAddress *buffer_list, int task_id, ConvParameter *conv_param, InputTransFunc in_func,
                       OutputTransFunc out_func) {
   int thread_num = conv_param->thread_num_;
diff --git a/mindspore/lite/nnacl/fp32/conv.h b/mindspore/lite/nnacl/fp32/conv.h
index a5e52fdf94..4e9ed71e63 100644
--- a/mindspore/lite/nnacl/fp32/conv.h
+++ b/mindspore/lite/nnacl/fp32/conv.h
@@ -34,11 +34,11 @@ extern "C" {
 #endif
 
 // fp32 convolution common (im2col+gemm)
-void ConvFp32(float *input_data, float *packed_input, const float *packed_weight, const float *bias_data,
+void ConvFp32(const float *input_data, float *packed_input, const float *packed_weight, const float *bias_data,
               float *col_major_input, float *output_data, int task_id, ConvParameter *conv_param);
 
 // fp32 convolution winograd
-void ConvWinogardFp32(float *input_data, const float *trans_weight, const float *bias_data, float *output_data,
+void ConvWinogardFp32(const float *input_data, const float *trans_weight, const float *bias_data, float *output_data,
                       TmpBufferAddress *buffer_list, int task_id, ConvParameter *conv_param, InputTransFunc in_func,
                       OutputTransFunc out_func);
 #ifdef __cplusplus
diff --git a/mindspore/lite/nnacl/fp32/deconv_winograd.c b/mindspore/lite/nnacl/fp32/deconv_winograd.c
index 359a135ed3..e6fd751af8 100644
--- a/mindspore/lite/nnacl/fp32/deconv_winograd.c
+++ b/mindspore/lite/nnacl/fp32/deconv_winograd.c
@@ -50,6 +50,7 @@ int PackDeConvWgDataFp32(float *nhwc_weight, DeConvComputeUnit *unit, ConvParame
                              DECONV_WINOGRAD_DEFAULT_UNIT, unit->h_size_);
     if (ret != NNACL_OK) {
       free(current_unit_weight);
+      current_unit_weight = NULL;
       return NNACL_ERRCODE_WINOGRAD_GENERATOR_ERROR;
     }
 
@@ -58,6 +59,7 @@ int PackDeConvWgDataFp32(float *nhwc_weight, DeConvComputeUnit *unit, ConvParame
     if (unit->winograd_.AT_ == NULL) {
       if (current_unit_weight != NULL) {
         free(current_unit_weight);
+        current_unit_weight = NULL;
       }
       return NNACL_NULL_PTR;
     }
@@ -68,9 +70,11 @@ int PackDeConvWgDataFp32(float *nhwc_weight, DeConvComputeUnit *unit, ConvParame
     if (unit->winograd_.BT_ == NULL) {
       if (current_unit_weight != NULL) {
         free(current_unit_weight);
+        current_unit_weight = NULL;
       }
       if (unit->winograd_.AT_ != NULL) {
         free(unit->winograd_.AT_);
+        unit->winograd_.AT_ = NULL;
       }
       return NNACL_NULL_PTR;
     }
@@ -82,12 +86,15 @@ int PackDeConvWgDataFp32(float *nhwc_weight, DeConvComputeUnit *unit, ConvParame
     if (winograd_unit_weight == NULL) {
       if (current_unit_weight != NULL) {
         free(current_unit_weight);
+        current_unit_weight = NULL;
       }
       if (unit->winograd_.AT_ != NULL) {
         free(unit->winograd_.AT_);
+        unit->winograd_.AT_ = NULL;
       }
       if (unit->winograd_.BT_ != NULL) {
         free(unit->winograd_.BT_);
+        unit->winograd_.BT_ = NULL;
       }
       return NNACL_NULL_PTR;
     }
@@ -97,6 +104,7 @@ int PackDeConvWgDataFp32(float *nhwc_weight, DeConvComputeUnit *unit, ConvParame
     /* reset weight data & info */
     tmp_kernel_plane = unit->winograd_.kh_ * unit->winograd_.kw_;
     free(current_unit_weight);
+    current_unit_weight = NULL;
     current_unit_weight = winograd_unit_weight;
     winograd_unit_weight = NULL;
   }
@@ -119,6 +127,7 @@ int PackDeConvWgDataFp32(float *nhwc_weight, DeConvComputeUnit *unit, ConvParame
 
   if (current_unit_weight != NULL) {
     free(current_unit_weight);
+    current_unit_weight = NULL;
   }
   return NNACL_OK;
 }
@@ -332,7 +341,7 @@ void DeConvWgMerge(const float *src, float *dst, size_t src_stride, size_t dst_s
 }
 
 void _deConvWinograd(const float *tile_in, float *tile_out, float *weight_buf, float *tmp_buf, float *at_buf,
-                     float *a_mid_buf, float *trans_a_buf, bool *transfered, float *bt_buf, float *b_tmp_buf,
+                     float *a_mid_buf, float *trans_a_buf, bool *transfered, const float *bt_buf, float *b_tmp_buf,
                      int unit_size, int w_start, int h_start, ConvParameter *conv_param, DeConvParam *deconv_param) {
   int winograd_plane = unit_size * unit_size;
   if (!transfered[unit_size]) {
diff --git a/mindspore/lite/nnacl/fp32/elu.c b/mindspore/lite/nnacl/fp32/elu.c
index b31940a6c7..01d5a2f848 100644
--- a/mindspore/lite/nnacl/fp32/elu.c
+++ b/mindspore/lite/nnacl/fp32/elu.c
@@ -22,7 +22,7 @@ void Calculate_Data(const float *input_data, float *output_data, int num, EluPar
   output_data[num] = input_data[num] < 0 ? parameter->alpha_ * expm1(input_data[num]) : input_data[num];
 }
 
-int Elu(float *input_data, float *output_data, EluParameter *parameter, int task_id) {
+int Elu(const float *input_data, float *output_data, EluParameter *parameter, int task_id) {
   for (size_t i = task_id; i < parameter->in_size_; i += parameter->thread_num_) {
     Calculate_Data(input_data, output_data, i, parameter);
   }
diff --git a/mindspore/lite/nnacl/fp32/elu.h b/mindspore/lite/nnacl/fp32/elu.h
index 623a40120e..d60826135f 100644
--- a/mindspore/lite/nnacl/fp32/elu.h
+++ b/mindspore/lite/nnacl/fp32/elu.h
@@ -29,7 +29,7 @@ typedef struct EluParameter {
 #ifdef __cplusplus
 extern "C" {
 #endif
-int Elu(float *input_data, float *output_data, EluParameter *parameter, int task_id);
+int Elu(const float *input_data, float *output_data, EluParameter *parameter, int task_id);
 #ifdef __cplusplus
 }
 #endif
diff --git a/mindspore/lite/nnacl/fp32/gatherNd.c b/mindspore/lite/nnacl/fp32/gatherNd.c
index 56b332b308..1a0dc7120a 100644
--- a/mindspore/lite/nnacl/fp32/gatherNd.c
+++ b/mindspore/lite/nnacl/fp32/gatherNd.c
@@ -18,7 +18,7 @@
 #include <string.h>
 #include "nnacl/errorcode.h"
 
-int GatherNd(const float *input, float *output, int *in_offset, int area, int count) {
+int GatherNd(const float *input, float *output, const int *in_offset, int area, int count) {
   int i = 0;
   for (i = 0; i < count; i++) {
     (void)memcpy(output + area * i, input + in_offset[i], area * sizeof(float));
diff --git a/mindspore/lite/nnacl/fp32/gatherNd.h b/mindspore/lite/nnacl/fp32/gatherNd.h
index 701000254c..2d6c651352 100644
--- a/mindspore/lite/nnacl/fp32/gatherNd.h
+++ b/mindspore/lite/nnacl/fp32/gatherNd.h
@@ -27,7 +27,7 @@ typedef struct GatherNdParameter {
 #ifdef __cplusplus
 extern "C" {
 #endif
-int GatherNd(const float *input, float *output, int *in_offset, int area, int count);
+int GatherNd(const float *input, float *output, const int *in_offset, int area, int count);
 #ifdef __cplusplus
 }
 #endif
diff --git a/mindspore/lite/nnacl/fp32/lstm.c b/mindspore/lite/nnacl/fp32/lstm.c
index b694c66c98..d90e405347 100644
--- a/mindspore/lite/nnacl/fp32/lstm.c
+++ b/mindspore/lite/nnacl/fp32/lstm.c
@@ -79,13 +79,13 @@ void ElementMulAcc(const float *input0, const float *input1, float *output, int
   }
 }
 
-void UpdataState(float *cell_state, float *forget_gate, const float *input_gate, float *cell_gate, int batch,
+void UpdataState(float *cell_state, const float *forget_gate, const float *input_gate, float *cell_gate, int batch,
                  int hidden_size) {
   ElementMul(forget_gate, cell_state, cell_state, batch * hidden_size);
   ElementMulAcc(input_gate, cell_gate, cell_state, batch * hidden_size);
 }
 
-void UpdataOutput(const float *cell_state, float *output_gate, float *hidden_state, int batch, int hidden_size) {
+void UpdataOutput(const float *cell_state, const float *output_gate, float *hidden_state, int batch, int hidden_size) {
   Tanh(cell_state, batch * hidden_size, hidden_state);
   ElementMul(hidden_state, output_gate, hidden_state, batch * hidden_size);
 }
diff --git a/mindspore/lite/nnacl/fp32/resize.c b/mindspore/lite/nnacl/fp32/resize.c
index 5cf7beeeb8..28d0f80750 100644
--- a/mindspore/lite/nnacl/fp32/resize.c
+++ b/mindspore/lite/nnacl/fp32/resize.c
@@ -65,7 +65,7 @@ int PrepareResizeBilinear(const int *input_shape, const int *output_shape, bool
 }
 
 int ResizeBilinear(const float *input_data, float *output_data, const int *input_shape, const int *output_shape,
-                   int *y_bottoms, const int *y_tops, int *x_lefts, int *x_rights, float *y_bottom_weights,
+                   const int *y_bottoms, const int *y_tops, int *x_lefts, int *x_rights, float *y_bottom_weights,
                    float *x_left_weights, int n_h_begin, int n_h_end) {
   if (input_data == NULL || output_data == NULL || input_shape == NULL || output_shape == NULL || y_bottoms == NULL ||
       y_tops == NULL || x_lefts == NULL || x_rights == NULL || y_bottom_weights == NULL || x_left_weights == NULL) {
@@ -154,7 +154,7 @@ int ResizeBilinear(const float *input_data, float *output_data, const int *input
   return NNACL_OK;
 }
 
-int InterpRow(const float *src_line, float *linear_output, int new_width, float *x_left_weights, int *x_lefts,
+int InterpRow(const float *src_line, float *linear_output, int new_width, float *x_left_weights, const int *x_lefts,
               const int *x_rights, int in_c) {
   int w;
   for (w = 0; w < new_width; w++) {
@@ -208,7 +208,7 @@ int InterpCol(const float *bottom_line, const float *top_line, float *output, in
 }
 
 int ResizeBilinear2(const float *input_data, float *output_data, const int *input_shape, const int *output_shape,
-                    int *y_bottoms, const int *y_tops, int *x_lefts, int *x_rights, float *y_bottom_weights,
+                    const int *y_bottoms, const int *y_tops, int *x_lefts, int *x_rights, float *y_bottom_weights,
                     float *x_left_weights, float *line0, float *line1, int n_h_begin, int n_h_end) {
   if (input_data == NULL || output_data == NULL || input_shape == NULL || output_shape == NULL || y_bottoms == NULL ||
       y_tops == NULL || x_lefts == NULL || x_rights == NULL || y_bottom_weights == NULL || x_left_weights == NULL) {
diff --git a/mindspore/lite/nnacl/fp32/resize.h b/mindspore/lite/nnacl/fp32/resize.h
index 3332d0c315..e9114d042a 100644
--- a/mindspore/lite/nnacl/fp32/resize.h
+++ b/mindspore/lite/nnacl/fp32/resize.h
@@ -30,11 +30,11 @@ int PrepareResizeBilinear(const int *input_shape, const int *output_shape, bool
                           int *y_tops, int *x_lefts, int *x_rights, float *y_bottom_weights, float *x_left_weights);
 
 int ResizeBilinear(const float *input_data, float *output_data, const int *input_shape, const int *output_shape,
-                   int *y_bottoms, const int *y_tops, int *x_lefts, int *x_rights, float *y_bottom_weights,
+                   const int *y_bottoms, const int *y_tops, int *x_lefts, int *x_rights, float *y_bottom_weights,
                    float *x_left_weights, int n_h_begin, int n_h_end);
 
 int ResizeBilinear2(const float *input_data, float *output_data, const int *input_shape, const int *output_shape,
-                    int *y_bottoms, const int *y_tops, int *x_lefts, int *x_rights, float *y_bottom_weights,
+                    const int *y_bottoms, const int *y_tops, int *x_lefts, int *x_rights, float *y_bottom_weights,
                     float *x_left_weights, float *line0, float *line1, int n_h_begin, int n_h_end);
 
 int ResizeNearestNeighbor(const float *input_data, float *output_data, const int *input_shape, const int *output_shape,
diff --git a/mindspore/lite/nnacl/fp32/scale.c b/mindspore/lite/nnacl/fp32/scale.c
index 87d2fa79c6..008096989a 100644
--- a/mindspore/lite/nnacl/fp32/scale.c
+++ b/mindspore/lite/nnacl/fp32/scale.c
@@ -18,8 +18,8 @@
 #ifdef ENABLE_ARM
 #include <arm_neon.h>
 #endif
-void ScaleInner(float *in_data, float *out_data, const float *scale, float *offset, int outer_start, int outer_end,
-                int axis_size, int inner_size) {
+void ScaleInner(float *in_data, float *out_data, const float *scale, const float *offset, int outer_start,
+                int outer_end, int axis_size, int inner_size) {
   for (int out = outer_start; out < outer_end; out++) {
     int out_offset = out * axis_size * inner_size;
     for (int i = 0; i < axis_size; i++) {
@@ -43,7 +43,7 @@ void ScaleInner(float *in_data, float *out_data, const float *scale, float *offs
   }
 }
 
-void ScaleAxis(float *in_data, float *out_data, const float *scale, float *offset, int outer_start, int outer_end,
+void ScaleAxis(float *in_data, float *out_data, const float *scale, const float *offset, int outer_start, int outer_end,
                int axis_size) {
   for (int out = outer_start; out < outer_end; out++) {
     int out_offset = out * axis_size;
@@ -65,7 +65,8 @@ void ScaleAxis(float *in_data, float *out_data, const float *scale, float *offse
   }
 }
 
-void DoScale(float *in_data, float *out_data, float *scale, float *offset, int task_id, ScaleParameter *scale_param) {
+void DoScale(float *in_data, float *out_data, const float *scale, float *offset, int task_id,
+             ScaleParameter *scale_param) {
   int outer_step = UP_DIV(scale_param->outer_size_, scale_param->op_parameter_.thread_num_);
   int outer_start = task_id * outer_step;
   int outer_end = MSMIN(outer_start + outer_step, scale_param->outer_size_);
@@ -78,8 +79,8 @@ void DoScale(float *in_data, float *out_data, float *scale, float *offset, int t
   }
 }
 
-void ScaleInnerRelu(float *in_data, float *out_data, const float *scale, float *offset, int outer_start, int outer_end,
-                    int axis_size, int inner_size) {
+void ScaleInnerRelu(float *in_data, float *out_data, const float *scale, const float *offset, int outer_start,
+                    int outer_end, int axis_size, int inner_size) {
 #ifdef ENABLE_ARM64
   float32x4_t zeros = {0, 0, 0, 0};
 #endif
@@ -108,8 +109,8 @@ void ScaleInnerRelu(float *in_data, float *out_data, const float *scale, float *
   }
 }
 
-void ScaleAxisRelu(float *in_data, float *out_data, const float *scale, float *offset, int outer_start, int outer_end,
-                   int axis_size) {
+void ScaleAxisRelu(float *in_data, float *out_data, const float *scale, const float *offset, int outer_start,
+                   int outer_end, int axis_size) {
 #ifdef ENABLE_ARM64
   float32x4_t zeros = {0, 0, 0, 0};
 #endif
@@ -135,7 +136,7 @@ void ScaleAxisRelu(float *in_data, float *out_data, const float *scale, float *o
   }
 }
 
-void DoScaleRelu(float *in_data, float *out_data, float *scale, float *offset, int task_id,
+void DoScaleRelu(float *in_data, float *out_data, const float *scale, float *offset, int task_id,
                  ScaleParameter *scale_param) {
   int outer_step = UP_DIV(scale_param->outer_size_, scale_param->op_parameter_.thread_num_);
   int outer_start = task_id * outer_step;
@@ -149,8 +150,8 @@ void DoScaleRelu(float *in_data, float *out_data, float *scale, float *offset, i
   }
 }
 
-void ScaleInnerRelu6(float *in_data, float *out_data, const float *scale, float *offset, int outer_start, int outer_end,
-                     int axis_size, int inner_size) {
+void ScaleInnerRelu6(float *in_data, float *out_data, const float *scale, const float *offset, int outer_start,
+                     int outer_end, int axis_size, int inner_size) {
 #ifdef ENABLE_ARM64
   float32x4_t zeros = {0, 0, 0, 0};
   float32x4_t bounds = {6, 6, 6, 6};
@@ -180,8 +181,8 @@ void ScaleInnerRelu6(float *in_data, float *out_data, const float *scale, float
   }
 }
 
-void ScaleAxisRelu6(float *in_data, float *out_data, const float *scale, float *offset, int outer_start, int outer_end,
-                    int axis_size) {
+void ScaleAxisRelu6(float *in_data, float *out_data, const float *scale, const float *offset, int outer_start,
+                    int outer_end, int axis_size) {
 #ifdef ENABLE_ARM64
   float32x4_t zeros = {0, 0, 0, 0};
   float32x4_t bounds = {6, 6, 6, 6};
@@ -208,7 +209,7 @@ void ScaleAxisRelu6(float *in_data, float *out_data, const float *scale, float *
   }
 }
 
-void DoScaleRelu6(float *in_data, float *out_data, float *scale, float *offset, int task_id,
+void DoScaleRelu6(float *in_data, float *out_data, const float *scale, float *offset, int task_id,
                   ScaleParameter *scale_param) {
   int outer_step = UP_DIV(scale_param->outer_size_, scale_param->op_parameter_.thread_num_);
   int outer_start = task_id * outer_step;
diff --git a/mindspore/lite/nnacl/fp32/scale.h b/mindspore/lite/nnacl/fp32/scale.h
index f1474e421c..53b28a4210 100644
--- a/mindspore/lite/nnacl/fp32/scale.h
+++ b/mindspore/lite/nnacl/fp32/scale.h
@@ -22,10 +22,11 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-void DoScale(float *in_data, float *out_data, float *scale, float *offset, int task_id, ScaleParameter *scale_param);
-void DoScaleRelu(float *in_data, float *out_data, float *scale, float *offset, int task_id,
+void DoScale(float *in_data, float *out_data, const float *scale, float *offset, int task_id,
+             ScaleParameter *scale_param);
+void DoScaleRelu(float *in_data, float *out_data, const float *scale, float *offset, int task_id,
                  ScaleParameter *scale_param);
-void DoScaleRelu6(float *in_data, float *out_data, float *scale, float *offset, int task_id,
+void DoScaleRelu6(float *in_data, float *out_data, const float *scale, float *offset, int task_id,
                   ScaleParameter *scale_param);
 #ifdef __cplusplus
 }
diff --git a/mindspore/lite/nnacl/fp32/softmax.c b/mindspore/lite/nnacl/fp32/softmax.c
index 484f9777bf..2315ce8c90 100644
--- a/mindspore/lite/nnacl/fp32/softmax.c
+++ b/mindspore/lite/nnacl/fp32/softmax.c
@@ -16,7 +16,6 @@
 
 #include "nnacl/fp32/softmax.h"
 #include <math.h>
-#include <float.h>
 
 // output = exp(input) / reduce_sum(exp(input), axis)
 void Softmax(const float *input_ptr, float *output_ptr, float *sum_data, SoftmaxParameter *parameter) {
diff --git a/mindspore/lite/nnacl/fp32/space_to_batch.c b/mindspore/lite/nnacl/fp32/space_to_batch.c
index fa1967abc5..3ae61e9ffc 100644
--- a/mindspore/lite/nnacl/fp32/space_to_batch.c
+++ b/mindspore/lite/nnacl/fp32/space_to_batch.c
@@ -16,7 +16,8 @@
 #include "nnacl/fp32/space_to_batch.h"
 #include "nnacl/arithmetic_common.h"
 
-void DoSpaceToBatchNHWC(const float *input, float *output, const int *block_sizes, int *in_shape, int *out_shape) {
+void DoSpaceToBatchNHWC(const float *input, float *output, const int *block_sizes, int *in_shape,
+                        const int *out_shape) {
   int out_dim0 = out_shape[0];
   int out_dim1 = out_shape[1];
   int out_dim2 = out_shape[2];
@@ -45,7 +46,8 @@ void DoSpaceToBatchNHWC(const float *input, float *output, const int *block_size
   }
 }
 
-void DoSpaceToBatchPaddingNHWC(const float *input, float *output, int *in_shape, const int *padding, int *out_shape) {
+void DoSpaceToBatchPaddingNHWC(const float *input, float *output, int *in_shape, const int *padding,
+                               const int *out_shape) {
   int in_h = in_shape[1];
   int in_w = in_shape[2];
   int in_c = in_shape[3];
diff --git a/mindspore/lite/nnacl/fp32/space_to_batch.h b/mindspore/lite/nnacl/fp32/space_to_batch.h
index 65f16e3df0..7a5b26cc68 100644
--- a/mindspore/lite/nnacl/fp32/space_to_batch.h
+++ b/mindspore/lite/nnacl/fp32/space_to_batch.h
@@ -30,8 +30,9 @@ typedef struct SpaceToBatchParameter {
 #ifdef __cplusplus
 extern "C" {
 #endif
-void DoSpaceToBatchNHWC(const float *input, float *output, const int *block_sizes, int *in_shape, int *out_shape);
-void DoSpaceToBatchPaddingNHWC(const float *input, float *output, int *in_shape, const int *padding, int *out_shape);
+void DoSpaceToBatchNHWC(const float *input, float *output, const int *block_sizes, int *in_shape, const int *out_shape);
+void DoSpaceToBatchPaddingNHWC(const float *input, float *output, int *in_shape, const int *padding,
+                               const int *out_shape);
 #ifdef __cplusplus
 }
 #endif
diff --git a/mindspore/lite/nnacl/fp32/space_to_depth.c b/mindspore/lite/nnacl/fp32/space_to_depth.c
index e486d190bd..35d6628941 100644
--- a/mindspore/lite/nnacl/fp32/space_to_depth.c
+++ b/mindspore/lite/nnacl/fp32/space_to_depth.c
@@ -18,7 +18,7 @@
 #include "nnacl/errorcode.h"
 #include "nnacl/op_base.h"
 
-int SpaceToDepthForNHWC(const float *input, float *output, int *in_shape, int *out_shape, int shape_size,
+int SpaceToDepthForNHWC(const float *input, float *output, int *in_shape, const int *out_shape, int shape_size,
                         int block_size, int h_start, int h_end) {
   if (input == NULL || output == NULL) {
     return NNACL_NULL_PTR;
diff --git a/mindspore/lite/nnacl/fp32/space_to_depth.h b/mindspore/lite/nnacl/fp32/space_to_depth.h
index e626b9c1d5..a19e17f8ba 100644
--- a/mindspore/lite/nnacl/fp32/space_to_depth.h
+++ b/mindspore/lite/nnacl/fp32/space_to_depth.h
@@ -24,7 +24,7 @@ typedef struct SpaceToDepthParameter {
 #ifdef __cplusplus
 extern "C" {
 #endif
-int SpaceToDepthForNHWC(const float *input, float *output, int *in_shape, int *out_shape, int shape_size,
+int SpaceToDepthForNHWC(const float *input, float *output, int *in_shape, const int *out_shape, int shape_size,
                         int block_size, int h_start, int h_end);
 #ifdef __cplusplus
 }
diff --git a/mindspore/lite/nnacl/fp32/sparse_to_dense.c b/mindspore/lite/nnacl/fp32/sparse_to_dense.c
index 3e044f9892..ccc795b95a 100644
--- a/mindspore/lite/nnacl/fp32/sparse_to_dense.c
+++ b/mindspore/lite/nnacl/fp32/sparse_to_dense.c
@@ -15,7 +15,7 @@
  */
 #include "nnacl/fp32/sparse_to_dense.h"
 
-void SparseToDense(int **sparse_indices, int *output_shape, const float *sparse_values, float default_value,
+void SparseToDense(int **sparse_indices, const int *output_shape, const float *sparse_values, float default_value,
                    float *output, bool isScalar, int index_start, int index_end, int out_width) {
   for (int i = index_start; i < index_end; i++) {
     for (int j = 0; j < out_width; j++) {
diff --git a/mindspore/lite/nnacl/fp32/sparse_to_dense.h b/mindspore/lite/nnacl/fp32/sparse_to_dense.h
index c7e9df6e68..2be2695bc5 100644
--- a/mindspore/lite/nnacl/fp32/sparse_to_dense.h
+++ b/mindspore/lite/nnacl/fp32/sparse_to_dense.h
@@ -21,7 +21,7 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-void SparseToDense(int **sparse_indices_vect, int *output_shape, const float *sparse_values, float default_value,
+void SparseToDense(int **sparse_indices_vect, const int *output_shape, const float *sparse_values, float default_value,
                    float *output, bool isScalar, int index_start, int index_end, int out_width);
 #ifdef __cplusplus
 }
diff --git a/mindspore/lite/nnacl/fp32/stack.c b/mindspore/lite/nnacl/fp32/stack.c
index ea30d24c2f..94ab176a93 100644
--- a/mindspore/lite/nnacl/fp32/stack.c
+++ b/mindspore/lite/nnacl/fp32/stack.c
@@ -17,7 +17,7 @@
 #include "nnacl/fp32/stack.h"
 #include "nnacl/arithmetic_common.h"
 
-size_t GetStackCopyNum(int axis, int *in_shape, size_t shape_size) {
+size_t GetStackCopyNum(int axis, const int *in_shape, size_t shape_size) {
   size_t one_input_size = 1;
   for (size_t i = 0; i < shape_size; ++i) {
     one_input_size *= in_shape[i];
@@ -68,6 +68,4 @@ void DoStackInt32(const int32_t *const *inputs, size_t input_num, int *in_shape,
   }
 }
 
-void DoStackOneInput(const int8_t *input, int8_t *output, size_t data_size) {
-  memcpy(output, input, data_size);
-}
+void DoStackOneInput(const int8_t *input, int8_t *output, size_t data_size) { memcpy(output, input, data_size); }
diff --git a/mindspore/lite/nnacl/int8/batch_to_space_int8.c b/mindspore/lite/nnacl/int8/batch_to_space_int8.c
index dec894404e..5bd37aaf36 100644
--- a/mindspore/lite/nnacl/int8/batch_to_space_int8.c
+++ b/mindspore/lite/nnacl/int8/batch_to_space_int8.c
@@ -15,7 +15,6 @@
  */
 
 #include "nnacl/int8/batch_to_space_int8.h"
-#include "nnacl/arithmetic_common.h"
 
 void BatchToSpaceNoCropForNHWCInt8(const int8_t *input, int8_t *output, const int *in_shape, int out_n,
                                    const int *block, QuantArg *in_quant_arg, QuantArg *out_quant_arg) {
diff --git a/mindspore/lite/nnacl/int8/conv_depthwise_int8.c b/mindspore/lite/nnacl/int8/conv_depthwise_int8.c
index 187bf90674..78fd2cb03f 100644
--- a/mindspore/lite/nnacl/int8/conv_depthwise_int8.c
+++ b/mindspore/lite/nnacl/int8/conv_depthwise_int8.c
@@ -491,7 +491,7 @@ void ConvDw3x3Int8Pad(int8_t *output_data, const int8_t *input_data, const int16
 /*conv depthwise sliding window perchannel int8 begin*/
 void DepthwiseBorderPixelInt8(int8_t *dst, const int8_t *src, const int16_t *weight, const int32_t *bias, int height,
                               int width, int in_kh_step, int in_kw_step, int kernel_w, int8_t *input_zp,
-                              int32_t *out_zp, int *out_multiplier, int *left_shift, const int *right_shift,
+                              int32_t *out_zp, const int *out_multiplier, int *left_shift, const int *right_shift,
                               int32_t *acc_min, int32_t *acc_max) {
   int tmp_buffer[C8NUM];
   for (int i = 0; i < C8NUM; i++) {
@@ -528,7 +528,7 @@ void DepthwiseBorderPixelInt8(int8_t *dst, const int8_t *src, const int16_t *wei
 void DepthwiseBorderInt8(int8_t *dst, const int8_t *src, const int16_t *weight, const int32_t *bias, int top,
                          int bottom, int left, int right, const ConvParameter *conv_param,
                          const SlidingWindowParam *sliding, int8_t *in_zp, int32_t *out_zp, int *out_multiplier,
-                         int *left_shift, int *right_shift, int32_t *acc_min, int32_t *acc_max) {
+                         int *left_shift, const int *right_shift, int32_t *acc_min, int32_t *acc_max) {
   int8_t *dst_h = dst + top * sliding->out_h_step_;
   for (int oh = top; oh < bottom; oh++) {
     int ih = oh * conv_param->stride_h_ - conv_param->pad_u_;
diff --git a/mindspore/lite/nnacl/int8/space_to_batch_int8.c b/mindspore/lite/nnacl/int8/space_to_batch_int8.c
index 970437a281..33a9741ced 100644
--- a/mindspore/lite/nnacl/int8/space_to_batch_int8.c
+++ b/mindspore/lite/nnacl/int8/space_to_batch_int8.c
@@ -17,7 +17,7 @@
 #include "nnacl/arithmetic_common.h"
 
 void DoSpaceToBatchNHWCInt8(const int8_t *input, int8_t *output, const int *block_sizes, int *in_shape,
-                            int *out_shape) {
+                            const int *out_shape) {
   int out_dim0 = out_shape[0];
   int out_dim1 = out_shape[1];
   int out_dim2 = out_shape[2];
@@ -47,7 +47,7 @@ void DoSpaceToBatchNHWCInt8(const int8_t *input, int8_t *output, const int *bloc
 }
 
 void DoSpaceToBatchPaddingNHWCInt8(const int8_t *input, int8_t *output, int *in_shape, const int *padding,
-                                   int *out_shape, int32_t zp) {
+                                   const int *out_shape, int32_t zp) {
   int in_h = in_shape[1];
   int in_w = in_shape[2];
   int in_c = in_shape[3];
diff --git a/mindspore/lite/nnacl/int8/space_to_batch_int8.h b/mindspore/lite/nnacl/int8/space_to_batch_int8.h
index cd19b442ff..cebcb0f162 100644
--- a/mindspore/lite/nnacl/int8/space_to_batch_int8.h
+++ b/mindspore/lite/nnacl/int8/space_to_batch_int8.h
@@ -21,9 +21,10 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-void DoSpaceToBatchNHWCInt8(const int8_t *input, int8_t *output, const int *block_sizes, int *in_shape, int *out_shape);
+void DoSpaceToBatchNHWCInt8(const int8_t *input, int8_t *output, const int *block_sizes, int *in_shape,
+                            const int *out_shape);
 void DoSpaceToBatchPaddingNHWCInt8(const int8_t *input, int8_t *output, int *in_shape, const int *padding,
-                                   int *out_shape, int32_t zp);
+                                   const int *out_shape, int32_t zp);
 #ifdef __cplusplus
 }
 #endif
diff --git a/mindspore/lite/nnacl/minimal_filtering_generator.c b/mindspore/lite/nnacl/minimal_filtering_generator.c
index a27b035993..b32c87e34b 100644
--- a/mindspore/lite/nnacl/minimal_filtering_generator.c
+++ b/mindspore/lite/nnacl/minimal_filtering_generator.c
@@ -54,7 +54,7 @@ void ResidueMatrix(const float *interval, float *b, int row, int col) {
   b[len - 1] = 1;
 }
 
-int LT(float *poly_array, float *matrix_lt, int n) {
+int LT(const float *poly_array, float *matrix_lt, int n) {
   if (n > MAX_LEN) {
     return NNACL_ERR;
   }
diff --git a/mindspore/lite/nnacl/minimal_filtering_generator.h b/mindspore/lite/nnacl/minimal_filtering_generator.h
index 376794c7be..14c402cad1 100644
--- a/mindspore/lite/nnacl/minimal_filtering_generator.h
+++ b/mindspore/lite/nnacl/minimal_filtering_generator.h
@@ -32,7 +32,7 @@ void DiagonalPlusMatrix(const float *matrix, float *diagonal_matrix, int degree)
 
 void ResidueMatrix(const float *interval, float *b, int row, int col);
 
-int LT(float *poly_array, float *matrix_lt, int n);
+int LT(const float *poly_array, float *matrix_lt, int n);
 
 void T(const float *poly_array, float *matrix_t, int n);
 
diff --git a/mindspore/lite/nnacl/transpose.c b/mindspore/lite/nnacl/transpose.c
index 4dbe7a7d9e..053f5ad3ae 100644
--- a/mindspore/lite/nnacl/transpose.c
+++ b/mindspore/lite/nnacl/transpose.c
@@ -18,8 +18,8 @@
 #include <string.h>
 #include "nnacl/errorcode.h"
 
-void TransposeDim2(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end) {
+void TransposeDim2(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end) {
   const int stride0 = strides[perm[0]];
   const int stride1 = strides[perm[1]];
   const int output0 = output_shape[0];
@@ -33,8 +33,8 @@ void TransposeDim2(float *in_data, float *out_data, const int *strides, int *out
   }
 }
 
-void TransposeDim3(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end) {
+void TransposeDim3(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end) {
   const int stride0 = strides[perm[0]];
   const int stride1 = strides[perm[1]];
   const int stride2 = strides[perm[2]];
@@ -56,8 +56,8 @@ void TransposeDim3(float *in_data, float *out_data, const int *strides, int *out
   }
 }
 
-void TransposeDim4(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end) {
+void TransposeDim4(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end) {
   const int stride0 = strides[perm[0]];
   const int stride1 = strides[perm[1]];
   const int stride2 = strides[perm[2]];
@@ -88,8 +88,8 @@ void TransposeDim4(float *in_data, float *out_data, const int *strides, int *out
   }
 }
 
-void TransposeDim5(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end) {
+void TransposeDim5(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end) {
   const int stride0 = strides[perm[0]];
   const int stride1 = strides[perm[1]];
   const int stride2 = strides[perm[2]];
@@ -127,8 +127,8 @@ void TransposeDim5(float *in_data, float *out_data, const int *strides, int *out
   }
 }
 
-void TransposeDims(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end, int dims, int *size, int *position) {
+void TransposeDims(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end, int dims, int *size, int *position) {
   *(size + dims - 1) = 1;
   for (int i = dims - 1; i > 0; --i) {
     *(size + i - 1) = *(size + i) * output_shape[i];
diff --git a/mindspore/lite/nnacl/transpose.h b/mindspore/lite/nnacl/transpose.h
index 753d9031f1..219005ea81 100644
--- a/mindspore/lite/nnacl/transpose.h
+++ b/mindspore/lite/nnacl/transpose.h
@@ -34,16 +34,16 @@ extern "C" {
 #endif
 int DoTranspose(float *in_data, float *out_data, int *input_shape, int *output_shape,
                 TransposeParameter *transpose_param, int h_start, int h_end, int *size, int *position);
-void TransposeDim2(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end);
-void TransposeDim3(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end);
-void TransposeDim4(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end);
-void TransposeDim5(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end);
-void TransposeDims(float *in_data, float *out_data, const int *strides, int *out_strides, int *perm, int *output_shape,
-                   int h_start, int h_end, int dims, int *size, int *position);
+void TransposeDim2(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end);
+void TransposeDim3(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end);
+void TransposeDim4(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end);
+void TransposeDim5(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end);
+void TransposeDims(float *in_data, float *out_data, const int *strides, int *out_strides, const int *perm,
+                   int *output_shape, int h_start, int h_end, int dims, int *size, int *position);
 #ifdef __cplusplus
 }
 #endif
diff --git a/mindspore/lite/nnacl/where.c b/mindspore/lite/nnacl/where.c
index 43617b755a..666a9a79c7 100644
--- a/mindspore/lite/nnacl/where.c
+++ b/mindspore/lite/nnacl/where.c
@@ -15,7 +15,8 @@
  */
 #include "nnacl/where.h"
 
-void Where(bool *input, float *input1, const float *input2, float *output, WhereParameter *where_param_, int task_id) {
+void Where(bool *input, const float *input1, const float *input2, float *output, WhereParameter *where_param_,
+           int task_id) {
   for (int i = task_id; i < where_param_->number_; i += where_param_->op_parameter_.thread_num_) {
     if (input[where_param_->num_ > 1 ? i : 0] == true) {
       output[i] = input1[where_param_->num1_ > 1 ? i : 0];
diff --git a/mindspore/lite/nnacl/where.h b/mindspore/lite/nnacl/where.h
index 33e4f5b73c..f405a1f0ee 100644
--- a/mindspore/lite/nnacl/where.h
+++ b/mindspore/lite/nnacl/where.h
@@ -30,7 +30,8 @@ typedef struct WhereParameter {
 #ifdef __cplusplus
 extern "C" {
 #endif
-void Where(bool *input, float *input1, const float *input2, float *output, WhereParameter *where_param_, int task_id);
+void Where(bool *input, const float *input1, const float *input2, float *output, WhereParameter *where_param_,
+           int task_id);
 #ifdef __cplusplus
 }
 #endif
diff --git a/mindspore/lite/nnacl/winograd_utils.c b/mindspore/lite/nnacl/winograd_utils.c
index f17d44323c..cbbfb13412 100644
--- a/mindspore/lite/nnacl/winograd_utils.c
+++ b/mindspore/lite/nnacl/winograd_utils.c
@@ -75,7 +75,7 @@ static OutputTransFunc OutputTransFuncRelu6List8[] = {NULL,
                                                       OutputTransform8x6Relu6Unit,
                                                       OutputTransform8x7Relu6Unit};
 
-void GeneralInputTransformUnit(const float *src_data, float *dst_data, float *matrix_b, const float *matrix_bt,
+void GeneralInputTransformUnit(const float *src_data, float *dst_data, const float *matrix_b, const float *matrix_bt,
                                int src_step, int dst_step, int in_unit) {
   int len = in_unit * in_unit;
   if (len > MAX_LEN) return;
@@ -112,7 +112,7 @@ void GeneralInputTransformUnit(const float *src_data, float *dst_data, float *ma
 #endif
 }
 
-void GeneralOutputTransformUnit(const float *src_data, float *dst_data, const float *bias_data, float *matrix_a,
+void GeneralOutputTransformUnit(const float *src_data, float *dst_data, const float *bias_data, const float *matrix_a,
                                 const float *matrix_at, int src_step, int dst_step, int in_unit, int out_unit) {
   int src_len = in_unit * in_unit;
   if (src_len > MAX_LEN) {
diff --git a/mindspore/lite/nnacl/winograd_utils.h b/mindspore/lite/nnacl/winograd_utils.h
index bc6f29b697..18b5783f2e 100644
--- a/mindspore/lite/nnacl/winograd_utils.h
+++ b/mindspore/lite/nnacl/winograd_utils.h
@@ -33,10 +33,10 @@ typedef void (*InputTransFunc)(const float *src_data, float *dst_data, int src_s
 typedef void (*OutputTransFunc)(const float *src_data, float *dst_data, const float *bias_data, int src_step,
                                 int dst_step, int out_c, int r_w, int r_h, int r_c);
 
-void GeneralInputTransformUnit(const float *src_data, float *dst_data, float *matrix_b, const float *matrix_bt,
+void GeneralInputTransformUnit(const float *src_data, float *dst_data, const float *matrix_b, const float *matrix_bt,
                                int src_step, int dst_step, int in_unit);
 
-void GeneralOutputTransformUnit(const float *src_data, float *dst_data, const float *bias_data, float *matrix_a,
+void GeneralOutputTransformUnit(const float *src_data, float *dst_data, const float *bias_data, const float *matrix_a,
                                 const float *matrix_at, int src_step, int dst_step, int in_unit, int out_unit);
 
 #define Load16Data                               \
diff --git a/mindspore/lite/src/common/file_utils.cc b/mindspore/lite/src/common/file_utils.cc
index c32ecd9605..a84a175c5f 100644
--- a/mindspore/lite/src/common/file_utils.cc
+++ b/mindspore/lite/src/common/file_utils.cc
@@ -85,7 +85,7 @@ std::string RealPath(const char *path) {
   return res;
 }
 
-int CompareOutputData(const float *output_data, size_t output_size, float *correct_data, size_t data_size) {
+int CompareOutputData(const float *output_data, size_t output_size, const float *correct_data, size_t data_size) {
   if (output_size != data_size) {
     printf("compare failed, output_size %zu isn't equal to data_size %zu.\n", output_size, data_size);
     return 0;
@@ -107,7 +107,7 @@ int CompareOutputData(const float *output_data, size_t output_size, float *corre
   return 0;
 }
 
-int CompareOutput(float *output_data, size_t output_num, std::string file_path) {
+int CompareOutput(const float *output_data, size_t output_num, std::string file_path) {
   size_t ground_truth_size;
   auto ground_truth = reinterpret_cast<float *>(mindspore::lite::ReadFile(file_path.c_str(), &ground_truth_size));
   size_t ground_truth_num = ground_truth_size / sizeof(float);
diff --git a/mindspore/lite/src/common/file_utils.h b/mindspore/lite/src/common/file_utils.h
index aadf7f6e5b..b9cae19ced 100644
--- a/mindspore/lite/src/common/file_utils.h
+++ b/mindspore/lite/src/common/file_utils.h
@@ -58,8 +58,8 @@ inline int WriteToBin(const std::string &file_path, void *data, size_t size) {
   return 0;
 }
 
-int CompareOutputData(const float *output_data, size_t output_num, float *correct_data, size_t data_size);
-int CompareOutput(float *output_data, size_t output_num, std::string file_path);
+int CompareOutputData(const float *output_data, size_t output_num, const float *correct_data, size_t data_size);
+int CompareOutput(const float *output_data, size_t output_num, std::string file_path);
 
 std::string GetAndroidPackageName();
 std::string GetAndroidPackagePath();
diff --git a/mindspore/lite/src/common/file_utils_ext.cc b/mindspore/lite/src/common/file_utils_ext.cc
index c8110619ad..036b2fd62f 100644
--- a/mindspore/lite/src/common/file_utils_ext.cc
+++ b/mindspore/lite/src/common/file_utils_ext.cc
@@ -21,7 +21,7 @@
 
 namespace mindspore {
 namespace lite {
-static float CompareOutputRelativeData(const float *output_data, float *correct_data, int data_size) {
+static float CompareOutputRelativeData(const float *output_data, const float *correct_data, int data_size) {
   float error = 0;
 
   // relative error
@@ -38,7 +38,7 @@ static float CompareOutputRelativeData(const float *output_data, float *correct_
   return error;
 }
 
-int CompareRelativeOutput(float *output_data, std::string file_path) {
+int CompareRelativeOutput(const float *output_data, std::string file_path) {
   size_t output_size;
   auto ground_truth = reinterpret_cast<float *>(mindspore::lite::ReadFile(file_path.c_str(), &output_size));
   if (ground_truth == nullptr) {
@@ -53,7 +53,7 @@ int CompareRelativeOutput(float *output_data, std::string file_path) {
   return 0;
 }
 
-float RelativeOutputError(float *output_data, std::string file_path) {
+float RelativeOutputError(const float *output_data, std::string file_path) {
   size_t output_size;
   auto ground_truth = reinterpret_cast<float *>(mindspore::lite::ReadFile(file_path.c_str(), &output_size));
   size_t output_num = output_size / sizeof(float);
diff --git a/mindspore/lite/src/common/file_utils_ext.h b/mindspore/lite/src/common/file_utils_ext.h
index 2f6561ffbf..f81c2e434c 100644
--- a/mindspore/lite/src/common/file_utils_ext.h
+++ b/mindspore/lite/src/common/file_utils_ext.h
@@ -20,8 +20,8 @@
 
 namespace mindspore {
 namespace lite {
-int CompareRelativeOutput(float *output_data, std::string file_path);
-float RelativeOutputError(float *output_data, std::string file_path);
+int CompareRelativeOutput(const float *output_data, std::string file_path);
+float RelativeOutputError(const float *output_data, std::string file_path);
 }  // namespace lite
 }  // namespace mindspore
 #endif  // MINDSPORE_LITE_COMMON_FILE_UTILS_EXT_H_
diff --git a/mindspore/lite/src/ops/assign_add.cc b/mindspore/lite/src/ops/assign_add.cc
index fe3c874fba..b65f6d23e4 100644
--- a/mindspore/lite/src/ops/assign_add.cc
+++ b/mindspore/lite/src/ops/assign_add.cc
@@ -37,6 +37,7 @@ int AssignAdd::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &
                   << schema::EnumNamePrimitiveType(primitive_->value.type) << "is  not equal"
                   << schema::EnumNamePrimitiveType(schema::PrimitiveType_AssignAdd);
     delete this->primitive_;
+    this->primitive_ = nullptr;
     return RET_ERROR;
   }
   if (this->primitive_->value.value == nullptr) {
@@ -44,6 +45,7 @@ int AssignAdd::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &
     if (this->primitive_->value.value == nullptr) {
       MS_LOG(ERROR) << "new primitiveT value failed";
       delete this->primitive_;
+      this->primitive_ = nullptr;
       return RET_ERROR;
     }
   }
diff --git a/mindspore/lite/src/ops/binary_cross_entropy_grad.cc b/mindspore/lite/src/ops/binary_cross_entropy_grad.cc
index 3b161ad4dc..1e61641ef1 100644
--- a/mindspore/lite/src/ops/binary_cross_entropy_grad.cc
+++ b/mindspore/lite/src/ops/binary_cross_entropy_grad.cc
@@ -43,6 +43,7 @@ int BinaryCrossEntropyGrad::UnPackAttr(const Primitive &prim, const std::vector<
                   << schema::EnumNamePrimitiveType(primitive_->value.type) << "is  not equal"
                   << schema::EnumNamePrimitiveType(schema::PrimitiveType_BinaryCrossEntropyGrad);
     delete this->primitive_;
+    this->primitive_ = nullptr;
     return RET_ERROR;
   }
   if (this->primitive_->value.value == nullptr) {
@@ -58,6 +59,8 @@ int BinaryCrossEntropyGrad::UnPackAttr(const Primitive &prim, const std::vector<
       MS_LOG(ERROR) << "get reduction failed!";
       delete this->primitive_;
       delete attr;
+      this->primitive_ = nullptr;
+      attr = nullptr;
       return RET_ERROR;
     } else {
       reduction = GetValue<string>(prim.GetAttr("reduction"));
diff --git a/mindspore/lite/src/ops/control_depend.cc b/mindspore/lite/src/ops/control_depend.cc
index f4acf6428b..c5296bdd17 100644
--- a/mindspore/lite/src/ops/control_depend.cc
+++ b/mindspore/lite/src/ops/control_depend.cc
@@ -32,6 +32,7 @@ int ControlDepend::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePt
   if (this->primitive_->value.type != schema::PrimitiveType_ControlDepend) {
     MS_LOG(ERROR) << "primitive_ type is error:" << this->primitive_->value.type;
     delete this->primitive_;
+    this->primitive_ = nullptr;
     return RET_ERROR;
   }
   if (this->primitive_->value.value == nullptr) {
@@ -39,6 +40,7 @@ int ControlDepend::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePt
     if (attr == nullptr) {
       MS_LOG(ERROR) << "attr is nullptr";
       delete this->primitive_;
+      this->primitive_ = nullptr;
       return RET_ERROR;
     }
     this->primitive_->value.value = attr;
diff --git a/mindspore/lite/src/ops/expand_dims.cc b/mindspore/lite/src/ops/expand_dims.cc
index 8d4608cb2a..ee8bc767cc 100644
--- a/mindspore/lite/src/ops/expand_dims.cc
+++ b/mindspore/lite/src/ops/expand_dims.cc
@@ -39,12 +39,14 @@ int ExpandDims::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr>
   if (this->primitive_->value.type != schema::PrimitiveType_ExpandDims) {
     MS_LOG(ERROR) << "Primitive type is error :" << this->primitive_->value.type;
     delete this->primitive_;
+    this->primitive_ = nullptr;
     return RET_ERROR;
   }
   if (this->primitive_->value.value == nullptr) {
     auto attr = new (std::nothrow) schema::ExpandDimsT();
     if (attr == nullptr) {
       delete this->primitive_;
+      this->primitive_ = nullptr;
       MS_LOG(ERROR) << "new primitiveT value failed";
       return RET_ERROR;
     }
@@ -57,6 +59,8 @@ int ExpandDims::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr>
       MS_LOG(ERROR) << "input axis is not value node.";
       delete this->primitive_;
       delete attr;
+      this->primitive_ = nullptr;
+      attr = nullptr;
       return RET_ERROR;
     }
     this->primitive_->value.value = attr;
diff --git a/mindspore/lite/src/ops/gather.cc b/mindspore/lite/src/ops/gather.cc
index 93f28be14b..16245068fb 100644
--- a/mindspore/lite/src/ops/gather.cc
+++ b/mindspore/lite/src/ops/gather.cc
@@ -44,6 +44,7 @@ int Gather::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &inp
     MS_LOG(ERROR) << "Gather primitive value type :  " << schema::EnumNamePrimitiveType(primitive_->value.type)
                   << "is  not equal" << schema::EnumNamePrimitiveType(schema::PrimitiveType_Gather);
     delete this->primitive_;
+    this->primitive_ = nullptr;
     return RET_ERROR;
   }
   if (this->primitive_->value.value == nullptr) {
@@ -52,6 +53,8 @@ int Gather::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &inp
       MS_LOG(ERROR) << "new primitive value.value error";
       delete this->primitive_;
       delete gather_attr;
+      this->primitive_ = nullptr;
+      gather_attr = nullptr;
       return RET_ERROR;
     }
     if (inputs[2]->isa<ValueNode>()) {
diff --git a/mindspore/lite/src/ops/oneslike.cc b/mindspore/lite/src/ops/oneslike.cc
index 419c7be533..d447de56b9 100644
--- a/mindspore/lite/src/ops/oneslike.cc
+++ b/mindspore/lite/src/ops/oneslike.cc
@@ -37,6 +37,7 @@ int OnesLike::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &i
                   << schema::EnumNamePrimitiveType(primitive_->value.type) << "is  not equal"
                   << schema::EnumNamePrimitiveType(schema::PrimitiveType_OnesLike);
     delete this->primitive_;
+    this->primitive_ = nullptr;
     return RET_ERROR;
   }
   if (this->primitive_->value.value == nullptr) {
@@ -44,6 +45,7 @@ int OnesLike::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &i
     if (this->primitive_->value.value == nullptr) {
       MS_LOG(ERROR) << "new primitiveT value failed";
       delete this->primitive_;
+      this->primitive_ = nullptr;
       return RET_ERROR;
     }
   }
diff --git a/mindspore/lite/src/ops/populate/layer_norm_populate.cc b/mindspore/lite/src/ops/populate/layer_norm_populate.cc
index 74d94e1630..a2ae098d04 100644
--- a/mindspore/lite/src/ops/populate/layer_norm_populate.cc
+++ b/mindspore/lite/src/ops/populate/layer_norm_populate.cc
@@ -35,6 +35,8 @@ OpParameter *PopulateLayerNormParameter(const mindspore::lite::PrimitiveC *primi
   layer_norm_parameter->normalized_shape_ = reinterpret_cast<int *>(malloc(normalized_shape.size() * sizeof(int)));
   if (layer_norm_parameter->normalized_shape_ == nullptr) {
     MS_LOG(ERROR) << "malloc layer_norm_parameter->normalized_shape_ failed.";
+    free(layer_norm_parameter);
+    layer_norm_parameter = nullptr;
     return nullptr;
   }
   for (size_t i = 0; i < normalized_shape.size(); i++) {
diff --git a/mindspore/lite/src/ops/power.cc b/mindspore/lite/src/ops/power.cc
index 7a59d4544e..f99bfa8124 100644
--- a/mindspore/lite/src/ops/power.cc
+++ b/mindspore/lite/src/ops/power.cc
@@ -43,6 +43,7 @@ int Power::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &inpu
   if (this->primitive_->value.type != schema::PrimitiveType_Power) {
     MS_LOG(ERROR) << "Primitive type is error :" << this->primitive_->value.type;
     delete this->primitive_;
+    this->primitive_ = nullptr;
     return RET_ERROR;
   }
   if (this->primitive_->value.value == nullptr) {
@@ -50,6 +51,7 @@ int Power::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &inpu
     if (attr == nullptr) {
       MS_LOG(ERROR) << "new primitiveT value failed";
       delete this->primitive_;
+      this->primitive_ = nullptr;
       return RET_ERROR;
     }
 
diff --git a/mindspore/lite/src/ops/resize.cc b/mindspore/lite/src/ops/resize.cc
index 991f99f2ee..a2638be972 100644
--- a/mindspore/lite/src/ops/resize.cc
+++ b/mindspore/lite/src/ops/resize.cc
@@ -63,9 +63,7 @@ int Resize::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &inp
     } else if (prim.instance_name() == "ResizeBilinear") {
       attr->method = schema::ResizeMethod_LINEAR;
     } else {
-      if (attr != nullptr) {
-        delete attr;
-      }
+      delete attr;
       MS_LOG(ERROR) << "wrong resize type";
       return RET_ERROR;
     }
diff --git a/mindspore/lite/src/ops/sub.cc b/mindspore/lite/src/ops/sub.cc
index 4b4282f38b..5fd57344a7 100644
--- a/mindspore/lite/src/ops/sub.cc
+++ b/mindspore/lite/src/ops/sub.cc
@@ -41,6 +41,7 @@ int Sub::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &inputs
   if (this->primitive_->value.type != schema::PrimitiveType_Sub) {
     MS_LOG(ERROR) << "Primitive type is error :" << this->primitive_->value.type;
     delete this->primitive_;
+    this->primitive_ = nullptr;
     return RET_ERROR;
   }
   if (this->primitive_->value.value == nullptr) {
@@ -48,6 +49,7 @@ int Sub::UnPackAttr(const Primitive &prim, const std::vector<AnfNodePtr> &inputs
     if (attr == nullptr) {
       MS_LOG(ERROR) << "new primitiveT value failed";
       delete this->primitive_;
+      this->primitive_ = nullptr;
       return RET_ERROR;
     }
     // todo: confirm the activationType
diff --git a/mindspore/lite/src/ops/unsorted_segment_sum.cc b/mindspore/lite/src/ops/unsorted_segment_sum.cc
index d60d30a48e..3356128d5d 100644
--- a/mindspore/lite/src/ops/unsorted_segment_sum.cc
+++ b/mindspore/lite/src/ops/unsorted_segment_sum.cc
@@ -41,6 +41,7 @@ int UnsortedSegmentSum::UnPackAttr(const Primitive &prim, const std::vector<AnfN
                   << schema::EnumNamePrimitiveType(primitive_->value.type) << "is  not equal"
                   << schema::EnumNamePrimitiveType(schema::PrimitiveType_UnsortedSegmentSum);
     delete this->primitive_;
+    this->primitive_ = nullptr;
     return RET_ERROR;
   }
   if (this->primitive_->value.value == nullptr) {
diff --git a/mindspore/lite/src/runtime/kernel/arm/fp32/arithmetic.h b/mindspore/lite/src/runtime/kernel/arm/fp32/arithmetic.h
index f855599f85..128d2b851c 100644
--- a/mindspore/lite/src/runtime/kernel/arm/fp32/arithmetic.h
+++ b/mindspore/lite/src/runtime/kernel/arm/fp32/arithmetic.h
@@ -171,15 +171,15 @@ class ArithmeticCPUKernel : public LiteKernel {
 
  private:
   int BroadcastRun(void *input0, void *input1, void *output, int dim, int out_count, int out_thread_stride);
-  int break_pos_;
-  int outside_;
-  int thread_count_;
-  ArithmeticParameter *arithmeticParameter_;
+  int break_pos_ = 0;
+  int outside_ = 0;
+  int thread_count_ = 1;
+  ArithmeticParameter *arithmeticParameter_ = nullptr;
   ArithmeticRun arithmetic_run_ = nullptr;
   ArithmeticOptRun arithmetic_opt_run_ = nullptr;
   ArithmeticIntRun arithmetic_run_int_ = nullptr;
   ArithmeticOptIntRun arithmetic_opt_run_int_ = nullptr;
-  LiteDataType data_type_;
+  LiteDataType data_type_ = kDataTypeFloat;
 };
 }  // namespace mindspore::kernel
 #endif  // MINDSPORE_LITE_SRC_RUNTIME_KERNEL_ARM_FP32_ARITHMETIC_H_
diff --git a/mindspore/lite/src/runtime/kernel/arm/fp32/deconvolution_winograd.cc b/mindspore/lite/src/runtime/kernel/arm/fp32/deconvolution_winograd.cc
index 41e2e871f5..d4d4cecdc5 100644
--- a/mindspore/lite/src/runtime/kernel/arm/fp32/deconvolution_winograd.cc
+++ b/mindspore/lite/src/runtime/kernel/arm/fp32/deconvolution_winograd.cc
@@ -68,22 +68,24 @@ void DeConvolutionWinogradCPUKernel::FreeResizeBuf() {
 }
 
 void DeConvolutionWinogradCPUKernel::FreeDeconvParam() {
-  for (int i = 0; i < deconv_param_->compute_size_; i++) {
-    DeConvComputeUnit &unit = deconv_param_->compute_units_[i];
-
-    if (unit.weight_ != nullptr) {
-      free(unit.weight_);
-      unit.weight_ = nullptr;
-    }
+  if (deconv_param_ != nullptr) {
+    for (int i = 0; i < deconv_param_->compute_size_; i++) {
+      DeConvComputeUnit &unit = deconv_param_->compute_units_[i];
 
-    if (unit.use_winograd_) {
-      if (unit.winograd_.AT_ != nullptr) {
-        free(unit.winograd_.AT_);
-        unit.winograd_.AT_ = nullptr;
+      if (unit.weight_ != nullptr) {
+        free(unit.weight_);
+        unit.weight_ = nullptr;
       }
-      if (unit.winograd_.BT_ != nullptr) {
-        free(unit.winograd_.BT_);
-        unit.winograd_.BT_ = nullptr;
+
+      if (unit.use_winograd_) {
+        if (unit.winograd_.AT_ != nullptr) {
+          free(unit.winograd_.AT_);
+          unit.winograd_.AT_ = nullptr;
+        }
+        if (unit.winograd_.BT_ != nullptr) {
+          free(unit.winograd_.BT_);
+          unit.winograd_.BT_ = nullptr;
+        }
       }
     }
   }
diff --git a/mindspore/lite/src/runtime/kernel/arm/int8/pad_int8.cc b/mindspore/lite/src/runtime/kernel/arm/int8/pad_int8.cc
index e894a51f70..df64fe3670 100644
--- a/mindspore/lite/src/runtime/kernel/arm/int8/pad_int8.cc
+++ b/mindspore/lite/src/runtime/kernel/arm/int8/pad_int8.cc
@@ -204,7 +204,7 @@ int MirrorPadImplInt8(void *cdata, int task_id) {
   return RET_OK;
 }
 
-int PadInt8CPUKernel::CheckPaddings(const int *paddings, int length, int *input_shape, int mode) {
+int PadInt8CPUKernel::CheckPaddings(const int *paddings, int length, const int *input_shape, int mode) {
   if (paddings == nullptr || input_shape == nullptr) {
     return RET_NULL_PTR;
   }
diff --git a/mindspore/lite/src/runtime/kernel/arm/int8/pad_int8.h b/mindspore/lite/src/runtime/kernel/arm/int8/pad_int8.h
index bb811ee94f..1062b47ced 100644
--- a/mindspore/lite/src/runtime/kernel/arm/int8/pad_int8.h
+++ b/mindspore/lite/src/runtime/kernel/arm/int8/pad_int8.h
@@ -48,7 +48,7 @@ class PadInt8CPUKernel : public LiteKernel {
 
  private:
   int HandleMirrorPad();
-  int CheckPaddings(const int *paddings, int length, int *input_shape, int mode);
+  int CheckPaddings(const int *paddings, int length, const int *input_shape, int mode);
   int CopyPaddingFromInput();
   void CalculateStrides();
   int ExtendPaddings(int *paddings, int length, const int *ori_paddings, int ori_length);