Christian König 3d2aca8c86 drm/amdgpu: fix old fence check in amdgpu_fence_emit
We don't hold a reference to the old fence, so it can go away
any time we are waiting for it to signal.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-12 11:28:17 -05:00
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