diff options
| author | Aric Cyr <[email protected]> | 2020-01-21 22:50:13 -0500 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2020-02-11 15:07:03 -0500 |
| commit | 2b63d0ec0daf79ba503fa8bfa25e07dc3da274f3 (patch) | |
| tree | 2e810bb7a16fe3f34b46f24eede5cff58e629fe3 | |
| parent | aad927b5a863178a9d921044e52d66e0ccf0aff9 (diff) | |
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 <[email protected]>
Reviewed-by: Harry Wentland <[email protected]>
Acked-by: Bhawanpreet Lakha <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -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, |