Commit 5aa71bd7 authored by Dan Carpenter's avatar Dan Carpenter Committed by Alex Deucher
Browse files

drm/amdkfd: CRIU return -EFAULT for copy_to_user() failure 



If copy_to_user() fails, it returns the number of bytes remaining to
be copied but we want to return a negative error code (-EFAULT) to the
user.

Fixes: 9d5dabfe ("drm/amdkfd: CRIU Save Shared Virtual Memory ranges")
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: default avatarDavid Yat Sin <david.yatsin@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e5af61ff

drivers/gpu/drm/amd/amdkfd/kfd_svm.c

+3 −3
Original line number Diff line number Diff line
@@ -3771,10 +3771,10 @@ int kfd_criu_checkpoint_svm(struct kfd_process *p, 
			goto exit_priv;

		}



		ret = copy_to_user(user_priv_data + *priv_data_offset,

				   svm_priv, svm_priv_data_size);

		if (ret) {

		if (copy_to_user(user_priv_data + *priv_data_offset, svm_priv,

				 svm_priv_data_size)) {

			pr_err("Failed to copy svm priv to user\n");

			ret = -EFAULT;

			goto exit_priv;

		}