Commit 889fa93d authored by Francisco Jerez's avatar Francisco Jerez Committed by Ben Skeggs
Browse files

drm/nouveau: Take fence spinlock in nouveau_fence_channel_fini(). 



Without it there's a potential race with nouveau_fence_update().

Signed-off-by: default avatarFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 2b478add

drivers/gpu/drm/nouveau/nouveau_fence.c

+4 −0
Original line number Diff line number Diff line
@@ -490,6 +490,8 @@ nouveau_fence_channel_fini(struct nouveau_channel *chan) 
{

	struct nouveau_fence *tmp, *fence;



	spin_lock(&chan->fence.lock);



	list_for_each_entry_safe(fence, tmp, &chan->fence.pending, entry) {

		fence->signalled = true;

		list_del(&fence->entry);
@@ -499,6 +501,8 @@ nouveau_fence_channel_fini(struct nouveau_channel *chan) 


		kref_put(&fence->refcount, nouveau_fence_del);

	}



	spin_unlock(&chan->fence.lock);

}



int