!6963 [Data]add input param check

Merge pull request !6963 from xulei/lite_test0905

mindspore/ccsrc/minddata/dataset/kernels/image/lite_cv/image_process.cc

@@ -294,6 +294,9 @@ static bool ConvertRGBAToGRAY(const unsigned char *data, LDataType data_type, in
 }
 
 bool InitFromPixel(const unsigned char *data, LPixelType pixel_type, LDataType data_type, int w, int h, LiteMat &m) {
+  if (data == nullptr) {
+    return false;
+  }
   if (w <= 0 || h <= 0) {
     return false;
   }
@@ -517,6 +520,9 @@ bool Pad(const LiteMat &src, LiteMat &dst, int top, int bottom, int left, int ri
   if (top <= 0 || bottom <= 0 || left <= 0 || right <= 0) {
     return false;
   }
+  if (src.IsEmpty()) {
+    return false;
+  }
   if (pad_type == PADD_BORDER_CONSTANT && src.data_type_ == LDataType::FLOAT32) {
     PadWithConstant<float>(src, dst, top, bottom, left, right, pad_type, fill_b_or_gray, fill_g, fill_r);
   } else if (pad_type == PADD_BORDER_CONSTANT && src.data_type_ == LDataType::UINT8) {