drm/amd/display: add pp_smu NULL pointer check

add pp_smu NULL ptr check

Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Charlene Liu 2018-09-07 13:31:34 -04:00 • committed by Alex Deucher
commit 5aa9935b65