[PATCH] dma-buf: Use fence_get_rcu_safe() for retrieving the exclusive fence

[Chris Wilson]

On Mon, Nov 14, 2016 at 11:55:40AM +0000, Chris Wilson wrote:
> The current code is subject to a race where we may try to acquire a
> reference on a stale fence:

>From i915.ko pov, this
Fixes: d07f0e59b2c7 ("drm/i915: Move GEM activity tracking into a common struct reservation_object")
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre