diff options
| author | Alex Hung <alex.hung@amd.com> | 2025-06-03 18:30:55 -0600 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-06-18 13:13:43 -0400 |
| commit | b669507b637eb6b1aaecf347f193efccc65d756e (patch) | |
| tree | 4cdc9b73321593b84fca4b5b6aaa357161477044 /drivers/gpu/drm/amd/display | |
| parent | 46e15197b513e60786a44107759d6ca293d6288c (diff) | |
drm/amd/display: Check dce_hwseq before dereferencing it
[WHAT]
hws was checked for null earlier in dce110_blank_stream, indicating hws
can be null, and should be checked whenever it is used.
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 79db43611ff61280b6de58ce1305e0b2ecf675ad)
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c index e8730cc40edb..38e17b1796e1 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c @@ -1225,7 +1225,7 @@ void dce110_blank_stream(struct pipe_ctx *pipe_ctx) return; if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP) { - if (!link->skip_implict_edp_power_control) + if (!link->skip_implict_edp_power_control && hws) hws->funcs.edp_backlight_control(link, false); link->dc->hwss.set_abm_immediate_disable(pipe_ctx); } |