drm/amdgpu: fix old fence check in amdgpu_fence_emit
authorChristian König <christian.koenig@amd.com>
Fri, 29 Mar 2019 18:30:23 +0000 (19:30 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 31 May 2019 13:43:34 +0000 (06:43 -0700)
commit5344c9ef9afe03dbaf6753ee22dfdbca1fc32df5
tree139e41ec530e071274f69a854c1bc4787f231938
parent8b4ad8fbfb95ad3167a13d26bdfa6cdd2211f4f6
drm/amdgpu: fix old fence check in amdgpu_fence_emit

[ Upstream commit 3d2aca8c8620346abdba96c6300d2c0b90a1d0cc ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c