Merge pull request #4839 from martin-frbg/fix4794

Add proper returns in x86_64 s/dscal kernels

kernel/x86_64/dscal.c

@@ -242,4 +242,5 @@ int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x, BLAS
             }
         }
     }
+    return(0);
 }

kernel/x86_64/sscal.c

@@ -200,4 +200,5 @@ int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x, BLAS
             }
         }
     }
+    return(0);
 }