[Werror] fix Werror-maybe-uninitialized in roi_align_grad_kernel (#51633

) * fix Werror in roi_align_grad_kernel * adopt a better way
PaddlePaddle · Mar 20, 2023 · 5786f3e · 5786f3e
1 parent d703545
commit 5786f3e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/paddle/phi/kernels/cpu/roi_align_grad_kernel.cc b/paddle/phi/kernels/cpu/roi_align_grad_kernel.cc
@@ -81,7 +81,7 @@ void RoiAlignGradKernel(const Context& dev_ctx,
                         int sampling_ratio,
                         bool aligned,
                         DenseTensor* dx) {
-  auto in_dims = x.dims();
+  const auto& in_dims = x.dims();
   int channels = in_dims[1];
   int height = in_dims[2];
   int width = in_dims[3];