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drm/msm/dsi: Add missing check for alloc_ordered_workqueue
[ Upstream commit 115906ca7b
]
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>
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@ -1977,6 +1977,9 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
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/* setup workqueue */
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msm_host->workqueue = alloc_ordered_workqueue("dsi_drm_work", 0);
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if (!msm_host->workqueue)
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return -ENOMEM;
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INIT_WORK(&msm_host->err_work, dsi_err_worker);
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msm_dsi->id = msm_host->id;
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