drm/msm/hdmi: Add missing check for alloc_ordered_workqueue
Add check for the return value of alloc_ordered_workqueue as it may return NULL pointer and cause NULL pointer dereference in `hdmi_hdcp.c` and `hdmi_hpd.c`. Fixes: c6a57a50ad56 ("drm/msm/hdmi: add hdmi hdcp support (V3)") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Patchwork: https://patchwork.freedesktop.org/patch/517211/ Link: https://lore.kernel.org/r/20230106023011.3985-1-jiasheng@iscas.ac.cn Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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@ -120,6 +120,10 @@ static int msm_hdmi_init(struct hdmi *hdmi)
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int ret;
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hdmi->workq = alloc_ordered_workqueue("msm_hdmi", 0);
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if (!hdmi->workq) {
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ret = -ENOMEM;
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goto fail;
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}
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hdmi->i2c = msm_hdmi_i2c_init(hdmi);
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if (IS_ERR(hdmi->i2c)) {
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