diff options
| author | Zicheng Qu <quzicheng@huawei.com> | 2024-11-05 14:01:37 +0000 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-11-20 10:03:06 -0500 |
| commit | 2bc96c95070571c6c824e0d4c7783bee25a37876 (patch) | |
| tree | 41ed2fb8b366ccaae47a14436d0fd64417a6be54 /drivers/gpu/drm | |
| parent | 6a057072ddd127255350357dd880903e8fa23f36 (diff) | |
drm/amd/display: Fix null check for pipe_ctx->plane_state in hwss_setup_dpp
This commit addresses a null pointer dereference issue in
hwss_setup_dpp(). The issue could occur when pipe_ctx->plane_state is
null. The fix adds a check to ensure `pipe_ctx->plane_state` is not null
before accessing. This prevents a null pointer dereference.
Fixes: 0baae6246307 ("drm/amd/display: Refactor fast update to use new HWSS build sequence")
Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Zicheng Qu <quzicheng@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c index 0419ee7f22a5..252af83e34a5 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c @@ -898,6 +898,9 @@ void hwss_setup_dpp(union block_sequence_params *params) struct dpp *dpp = pipe_ctx->plane_res.dpp; struct dc_plane_state *plane_state = pipe_ctx->plane_state; + if (!plane_state) + return; + if (dpp && dpp->funcs->dpp_setup) { // program the input csc dpp->funcs->dpp_setup(dpp, |