diff --git a/mindspore/lite/nnacl/concat_parameter.h b/mindspore/lite/nnacl/concat_parameter.h
index 91b8966319..30d07da755 100644
--- a/mindspore/lite/nnacl/concat_parameter.h
+++ b/mindspore/lite/nnacl/concat_parameter.h
@@ -26,8 +26,8 @@ typedef struct ConcatParameter {
   int axis_;
   int thread_count_;
   int input_num_;
-  const int **input_shapes_;
-  const int *output_shapes_;
+  int **input_shapes_;
+  int *output_shapes_;
   int64_t after_axis_size;
   int64_t count_unit_;
 } ConcatParameter;
diff --git a/mindspore/lite/nnacl/int8/quant_dtype_cast.c b/mindspore/lite/nnacl/int8/quant_dtype_cast.c
index 3728db12e3..1e8e7d7986 100644
--- a/mindspore/lite/nnacl/int8/quant_dtype_cast.c
+++ b/mindspore/lite/nnacl/int8/quant_dtype_cast.c
@@ -35,7 +35,7 @@ int DoQuantizeToInt8FromFp32(float *real_values, int8_t *quant_values, float sca
   }
 
   for (int i = 0; i < size; ++i) {
-    float temp = round(real_values[i] / scale + zp);
+    float temp = round(real_values[i] * 1.0 / scale + zp);
     if (temp > 127) {
       quant_values[i] = 127;
     } else if (temp < -128) {
diff --git a/mindspore/lite/src/runtime/kernel/arm/int8/concat_int8.cc b/mindspore/lite/src/runtime/kernel/arm/int8/concat_int8.cc
index 91b5c986e6..8120b3fb9c 100644
--- a/mindspore/lite/src/runtime/kernel/arm/int8/concat_int8.cc
+++ b/mindspore/lite/src/runtime/kernel/arm/int8/concat_int8.cc
@@ -67,7 +67,7 @@ int ConcatInt8CPUKernel::ReSize() {
   }
   auto input_num = in_tensors_.size();
   concat_param_->input_num_ = input_num;
-  concat_param_->input_shapes_ = reinterpret_cast<const int **>(malloc(sizeof(int *) * input_num));
+  concat_param_->input_shapes_ = reinterpret_cast<int **>(malloc(sizeof(int *) * input_num));
   if (concat_param_->input_shapes_ == nullptr) {
     MS_LOG(ERROR) << "malloc concat_param_->input_shapes_ failed.";
     return RET_ERROR;
@@ -80,8 +80,7 @@ int ConcatInt8CPUKernel::ReSize() {
                     << " failed.";
       return RET_ERROR;
     }
-    memcpy(reinterpret_cast<void *>(const_cast<int *>(concat_param_->input_shapes_[i])), in_shape.data(),
-           sizeof(int) * in_shape.size());
+    memcpy(reinterpret_cast<void *>(concat_param_->input_shapes_[i]), in_shape.data(), sizeof(int) * in_shape.size());
   }
 
   before_axis_size = 1;
@@ -98,7 +97,7 @@ int ConcatInt8CPUKernel::ReSize() {
     MS_LOG(ERROR) << "malloc concat_param_->output_shapes_ failed.";
     return RET_ERROR;
   }
-  memcpy(reinterpret_cast<void *>(const_cast<int *>(concat_param_->output_shapes_)), output_tensor->shape().data(),
+  memcpy(reinterpret_cast<void *>(concat_param_->output_shapes_), output_tensor->shape().data(),
          sizeof(int) * output_dim);
 
   for (size_t i = axis_ + 1; i < output_dim; i++) {
diff --git a/mindspore/lite/src/runtime/kernel/arm/int8/concat_int8.h b/mindspore/lite/src/runtime/kernel/arm/int8/concat_int8.h
index ae74cc6a53..c14f7c2c14 100644
--- a/mindspore/lite/src/runtime/kernel/arm/int8/concat_int8.h
+++ b/mindspore/lite/src/runtime/kernel/arm/int8/concat_int8.h
@@ -36,6 +36,16 @@ class ConcatInt8CPUKernel : public ConcatBaseCPUKernel {
     if (input_data_ != nullptr) {
       free(input_data_);
     }
+    int *output_shape = concat_param_->output_shapes_;
+    if (output_shape != nullptr) {
+      free(output_shape);
+    }
+    for (std::size_t i = 0; i < in_tensors().size(); i++) {
+      int *input_shape = concat_param_->input_shapes_[i];
+      if (input_shape != nullptr) {
+        free(input_shape);
+      }
+    }
     if (concat_param_->input_shapes_ != nullptr) {
       free(concat_param_->input_shapes_);
     }