4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> commit 83dd1376fd92f33bdeca9e83d479534a4e7f870b upstream. As the fence->status is an optional field that may be set before dma_fence_signal() is called to convey that the fence completed with an error, we have to ensure that it is always set to zero on initialisation so that the typical use (i.e. unset) always flags a successful completion. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx> Reviewed-by: Sumit Semwal <sumit.semwal@xxxxxxxxxx> Signed-off-by: Sumit Semwal <sumit.semwal@xxxxxxxxxx> Link: http://patchwork.freedesktop.org/patch/msgid/20170104141222.6992-1-chris@xxxxxxxxxxxxxxxxxx [s/dma_fence/fence/g - gregkh] Cc: Jisheng Zhang <Jisheng.Zhang@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/dma-buf/fence.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/dma-buf/fence.c +++ b/drivers/dma-buf/fence.c @@ -526,6 +526,7 @@ fence_init(struct fence *fence, const st fence->context = context; fence->seqno = seqno; fence->flags = 0UL; + fence->status = 0; trace_fence_init(fence); }