drm/amd/amdgpu : Remove unused variable

Remove unused variable 'ret', and directly return 0.

Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Muhammad Falak R Wani 2016-05-17 15:12:46 +05:30 • committed by Alex Deucher
commit a280a42aa3