display model info

ge/common/helper/model_helper.cc

@@ -129,7 +129,11 @@ Status ModelHelper::SaveModelDef(std::shared_ptr<OmFileSaveHelper> &om_file_save
   model_tmp->SetGraph(ge_model->GetGraph());
   model_tmp->SetVersion(ge_model->GetVersion());
   model_tmp->SetAttr(ge_model->MutableAttrMap());
-  SaveSizeToModelDef(ge_model);
+  Status ret = SaveSizeToModelDef(ge_model);
+  if (ret != SUCCESS) {
+    GELOGE(ret, "SaveSizeToModelDef failed");
+    return ret;
+  }
 
   (void)model_tmp->Save(model_buffer);
   GELOGD("MODEL_DEF size is %zu", model_buffer.GetSize());