Am 22.11.18 um 07:56 schrieb Sharma, Deepak:
when returned fence is not valid mostly due to userspace ignored
previous error causes NULL pointer dereference.
Again, this is clearly incorrect. The my other mails on the earlier patch.
If you have already pushed the patch then please revert.
Christian.
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;
}
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