diff --git a/mindspore/lite/tools/converter/legacy_optimizer/fusion/batchnorm_convert_scale_pass.cc b/mindspore/lite/tools/converter/legacy_optimizer/fusion/batchnorm_convert_scale_pass.cc
index fbbd4adcba7be5e74216409ae6294b5f8be661c7..cc7c0f5b110a372696a03473c45e13bd717e83a9 100644
--- a/mindspore/lite/tools/converter/legacy_optimizer/fusion/batchnorm_convert_scale_pass.cc
+++ b/mindspore/lite/tools/converter/legacy_optimizer/fusion/batchnorm_convert_scale_pass.cc
@@ -90,23 +90,29 @@ STATUS BatchNormConvertScalePass::DoFusion(MetaGraphT *graph, const std::string
     return RET_OK;
   }
   auto bnPath = matchedPath.at(bnOpName);
-  status = GetTransParam(graph, bnPath);
-  if (status != RET_OK) {
-    MS_LOG(ERROR) << "GetTransParam failed: " << status;
-    return status;
-  }
-
   status = GenNewScaleTensor(graph, bnPath);
   if (status != RET_OK) {
     MS_LOG(ERROR) << "GenNewScaleTensor failed: " << status;
+    delete[] transScale;
+    delete[] transBias;
+    transScale = nullptr;
+    transBias = nullptr;
     return status;
   }
 
   status = ConvertBNToScale(graph, bnPath);
   if (status != RET_OK) {
     MS_LOG(ERROR) << "GenNewScaleTensor failed: " << status;
+    delete[] transScale;
+    delete[] transBias;
+    transScale = nullptr;
+    transBias = nullptr;
     return status;
   }
+  delete[] transScale;
+  delete[] transBias;
+  transScale = nullptr;
+  transBias = nullptr;
   return RET_OK;
 }
 STATUS BatchNormConvertScalePass::ConvertBNToScale(MetaGraphT *graph, const std::shared_ptr<Path> &bnPath) {
@@ -245,6 +251,10 @@ STATUS BatchNormConvertScalePass::GetTransParam(MetaGraphT *graph, const std::sh
   // cal transScale, tf : scale/sqrt(variance + eps); caffe : 1/sqrt(variance + eps)
   if (memcpy_s(transScale, bnChannel * sizeof(float), varianceData, bnChannel * sizeof(float)) != 0) {
     MS_LOG(ERROR) << "memcpy_s transScale error";
+    delete[] transScale;
+    delete[] transBias;
+    transScale = nullptr;
+    transBias = nullptr;
     return RET_ERROR;
   }
   // 1/sqrt(variance + eps)
@@ -370,14 +380,5 @@ STATUS BatchNormConvertScalePass::GetBnEpsilon(MetaGraphT *graph) {
   }
   return RET_OK;
 }
-
-BatchNormConvertScalePass::~BatchNormConvertScalePass() {
-  if (this->transScale != nullptr) {
-    delete (this->transScale);
-  }
-  if (this->transBias != nullptr) {
-    delete (this->transBias);
-  }
-}
 }  // namespace lite
 }  // namespace mindspore
diff --git a/mindspore/lite/tools/converter/legacy_optimizer/fusion/batchnorm_convert_scale_pass.h b/mindspore/lite/tools/converter/legacy_optimizer/fusion/batchnorm_convert_scale_pass.h
index 06a6833706551c7a7adcc40bfe379a22defee8e8..7163914b07288429f5a264365e5094c838139fe1 100644
--- a/mindspore/lite/tools/converter/legacy_optimizer/fusion/batchnorm_convert_scale_pass.h
+++ b/mindspore/lite/tools/converter/legacy_optimizer/fusion/batchnorm_convert_scale_pass.h
@@ -36,7 +36,7 @@ class BatchNormConvertScalePass : public FusionPass {
  public:
   BatchNormConvertScalePass() = default;
 
-  ~BatchNormConvertScalePass() override;
+  ~BatchNormConvertScalePass() = default;
 
   STATUS DefinePattern() override;