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authorJessica Zhang <quic_jesszhan@quicinc.com>2023-02-21 10:42:54 -0800
committerDmitry Baryshkov <dmitry.baryshkov@linaro.org>2023-04-06 20:29:24 +0300
commit078f6ec8657db604a1620da6698fb236e9b96bec (patch)
treed6524e89736f3d6e13f0328f278708739cc636ce
parent3eeca5e5f3100435b06a5b5d86daa3d135a8a4bd (diff)
drm/msm: Check for NULL before calling prepare_commit()
Add a NULL check before calling prepare_commit() in msm_atomic_commit_tail() Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org> Patchwork: https://patchwork.freedesktop.org/patch/523604/ Link: https://lore.kernel.org/r/20230221184256.1436-3-quic_jesszhan@quicinc.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
-rw-r--r--drivers/gpu/drm/msm/msm_atomic.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c
index c5e71c05f038..608a969efea2 100644
--- a/drivers/gpu/drm/msm/msm_atomic.c
+++ b/drivers/gpu/drm/msm/msm_atomic.c
@@ -205,7 +205,8 @@ void msm_atomic_commit_tail(struct drm_atomic_state *state)
* Now that there is no in-progress flush, prepare the
* current update:
*/
- kms->funcs->prepare_commit(kms, state);
+ if (kms->funcs->prepare_commit)
+ kms->funcs->prepare_commit(kms, state);
/*
* Push atomic updates down to hardware: