drm/amdgpu: fix error checking when reuse vmid on same ring

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-04-14 15:53:55 +08:00 • committed by Alex Deucher
commit 178d7cb8d5