when returned fence is not valid mostly due to userspace ignored previous error causes NULL pointer dereference. Signed-off-by: Deepak Sharma <Deepak.Sharma@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 024dfbd87f11..14166cd8a12f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1403,6 +1403,8 @@ static struct dma_fence *amdgpu_cs_get_fence(struct amdgpu_device *adev, fence = amdgpu_ctx_get_fence(ctx, entity, user->seq_no); amdgpu_ctx_put(ctx); + if(!fence) + return ERR_PTR(-EINVAL); return fence; } -- 2.15.1 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
