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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2023-01-10 05:16:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-11 18:39:52 +0300 |
| commit | 540c66180afd59309a442d3bf1f2393464c8b4c5 (patch) | |
| tree | d402b6d46fc7b154919a47a22a8e1185f42e6129 /drivers | |
| parent | d473c55ce1975c9e601c25293328a5039225d2b2 (diff) | |
| download | linux-540c66180afd59309a442d3bf1f2393464c8b4c5.tar.xz | |
drm/msm/dsi: Add missing check for alloc_ordered_workqueue
[ Upstream commit 115906ca7b535afb1fe7b5406c566ccd3873f82b ]
Add check for the return value of alloc_ordered_workqueue as it may return
NULL pointer and cause NULL pointer dereference.
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/517646/
Link: https://lore.kernel.org/r/20230110021651.12770-1-jiasheng@iscas.ac.cn
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_host.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 51e8318cc8ff..5a76aa138917 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1913,6 +1913,9 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi) /* setup workqueue */ msm_host->workqueue = alloc_ordered_workqueue("dsi_drm_work", 0); + if (!msm_host->workqueue) + return -ENOMEM; + INIT_WORK(&msm_host->err_work, dsi_err_worker); INIT_WORK(&msm_host->hpd_work, dsi_hpd_worker); |