diff options
| author | Taimur Hassan <[email protected]> | 2023-06-20 17:00:28 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2023-07-18 11:13:55 -0400 |
| commit | ab02d4ae4a4313568761b4877a2eee3e7579ef34 (patch) | |
| tree | c3b4babd49eeab165ab8588062338386231e796b | |
| parent | e198a746fc1bc009e3f0e7b9436553ccdd4f6cc1 (diff) | |
drm/amd/display: check TG is non-null before checking if enabled
[Why & How]
If there is no TG allocation we can dereference a NULL pointer when
checking if the TG is enabled.
Cc: Mario Limonciello <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: [email protected]
Reviewed-by: Nicholas Kazlauskas <[email protected]>
Acked-by: Alan Liu <[email protected]>
Signed-off-by: Taimur Hassan <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index a50309039d08..9834b75f1837 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -3278,7 +3278,8 @@ void dcn10_wait_for_mpcc_disconnect( if (pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst]) { struct hubp *hubp = get_hubp_by_inst(res_pool, mpcc_inst); - if (pipe_ctx->stream_res.tg->funcs->is_tg_enabled(pipe_ctx->stream_res.tg)) + if (pipe_ctx->stream_res.tg && + pipe_ctx->stream_res.tg->funcs->is_tg_enabled(pipe_ctx->stream_res.tg)) res_pool->mpc->funcs->wait_for_idle(res_pool->mpc, mpcc_inst); pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst] = false; hubp->funcs->set_blank(hubp, true); |