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>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 7d9be87..61bb3d5 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1395,7 +1395,7 @@ static void notify_display_count_to_smu(
         * sent as part of pplib_apply_display_requirements.
         * So just return.
         */
-       if (!pp_smu->set_display_count)
+       if (!pp_smu || !pp_smu->set_display_count)
                return;
 
        display_count = 0;