We are observing a NULL value in the non userq fences, thus added a NULL pointer check just to avoid the NULL pointer dereference crash. v2: Moved the NULL check above the non userq check. Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c index 6157a540c929..76f7babd7a54 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c @@ -815,6 +815,9 @@ int amdgpu_userq_wait_ioctl(struct drm_device *dev, void *data, struct amdgpu_userq_fence *userq_fence; u32 index; + if (!fences[i]) + continue; + userq_fence = to_amdgpu_userq_fence(fences[i]); if (!userq_fence) { /* -- 2.25.1