From: Bhawanpreet Lakha <bhawanpreet.la...@amd.com>
[Why]
Fix surface/plane potential nullptr
[How]
add null check
Signed-off-by: Bhawanpreet Lakha <bhawanpreet.la...@amd.com>
Reviewed-by: Aric Cyr <aric....@amd.com>
Acked-by: Leo Li <sunpeng...@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 492230c..84201f4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5321,6 +5321,12 @@ enum surface_update_type
dm_determine_update_type_for_commit(struct dc *dc, stru
struct dc_stream_update stream_update;
enum surface_update_type update_type = UPDATE_TYPE_FAST;
+ if (!updates || !surface) {
+ DRM_ERROR("Plane or surface update failed to allocate");
+ /* Set type to FULL to avoid crashing in DC*/
+ update_type = UPDATE_TYPE_FULL;
+ goto ret;
+ }
for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
new_crtc_state, i) {
new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
--
2.7.4
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