Am 20.11.24 um 10:26 schrieb Arunpravin Paneer Selvam:
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;
That should never ever happen in the first place.
All fences in the array either come from some reservation object or
drm_syncobj. If any of those are NULL then there is a bug somewhere else.
Regards,
Christian.
+
userq_fence = to_amdgpu_userq_fence(fences[i]);
if (!userq_fence) {
/*
