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

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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: 9d5dabfeff ("drm/amdkfd: CRIU Save Shared Virtual Memory ranges")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dan Carpenter 2022-02-09 21:09:59 +03:00 committed by Alex Deucher
parent e5af61ffaa
commit 5aa71bd773
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/amd/amdkfd/kfd_svm.c
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@ -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;
}