diff options
| author | Aric Cyr <aric.cyr@amd.com> | 2020-01-22 06:50:13 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-11 23:07:03 +0300 |
| commit | 2b63d0ec0daf79ba503fa8bfa25e07dc3da274f3 (patch) | |
| tree | 2e810bb7a16fe3f34b46f24eede5cff58e629fe3 /drivers | |
| parent | aad927b5a863178a9d921044e52d66e0ccf0aff9 (diff) | |
| download | linux-2b63d0ec0daf79ba503fa8bfa25e07dc3da274f3.tar.xz | |
drm/amd/display: Check engine is not NULL before acquiring
[Why]
Engine can be NULL in some cases, so we must not acquire it.
[How]
Check for NULL engine before acquiring.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c index f1a5d2c6aa37..68c4049cbc2a 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -400,7 +400,7 @@ static bool acquire( { enum gpio_result result; - if (!is_engine_available(engine)) + if ((engine == NULL) || !is_engine_available(engine)) return false; result = dal_ddc_open(ddc, GPIO_MODE_HARDWARE, |