diff options
| author | Alex Hung <alex.hung@amd.com> | 2025-12-08 12:11:43 -0700 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-01-07 17:24:16 -0500 |
| commit | eb236fb911ca0f4243124d8a285ec0453a99a8b4 (patch) | |
| tree | 3b32de02ea7ce891dc5c5572096670ed099a8ab6 | |
| parent | 0de604d0357d0d22cbf03af1077d174b641707b6 (diff) | |
drm/amd/display: Check NULL before calling dac_load_detection
dac_load_detection can be NULL in some scenario, so checking it before
calling.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 179176134b535246f0b368b30e8ecad50066f896)
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/link_detection.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c b/drivers/gpu/drm/amd/display/dc/link/link_detection.c index 6d31f4967f1a..e1940b8e5bc3 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c @@ -932,7 +932,7 @@ static bool link_detect_dac_load_detect(struct dc_link *link) struct link_encoder *link_enc = link->link_enc; enum engine_id engine_id = link_enc->preferred_engine; enum dal_device_type device_type = DEVICE_TYPE_CRT; - enum bp_result bp_result; + enum bp_result bp_result = BP_RESULT_UNSUPPORTED; uint32_t enum_id; switch (engine_id) { @@ -946,7 +946,9 @@ static bool link_detect_dac_load_detect(struct dc_link *link) break; } - bp_result = bios->funcs->dac_load_detection(bios, engine_id, device_type, enum_id); + if (bios->funcs->dac_load_detection) + bp_result = bios->funcs->dac_load_detection(bios, engine_id, device_type, enum_id); + return bp_result == BP_RESULT_OK; } |