drm/msm/dpu: check for null return of devm_kzalloc() in dpu_writeback_init()

Browse source

[ Upstream commit 21e9a838f5 ]

Because of the possilble failure of devm_kzalloc(), dpu_wb_conn might
be NULL and will cause null pointer dereference later.

Therefore, it might be better to check it and directly return -ENOMEM.

Fixes: 77b001acdc ("drm/msm/dpu: add the writeback connector layer")
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/512277/
Link: https://lore.kernel.org/r/20221119055518.179937-1-tanghui20@huawei.com
[DB: fixed typo in commit message]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Hui Tang 2022-11-19 13:55:18 +08:00 • committed by Greg Kroah-Hartman

parent 9aba03fb51

commit 3723c4dbcd

1 changed files with 2 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c

View file