drm/amdgpu: add missing error handling

We ignored the return code here.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-09-26 14:17:03 +02:00 • committed by Alex Deucher
commit 30da7bb184