Forwarded: Fixing BUG: corrupted list in usb_hcd_link_urb_to_ep

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Subject: Fixing BUG: corrupted list in usb_hcd_link_urb_to_ep
Author: xue.lei@xxxxxxxxxxxxx

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

--- a/drivers/input/misc/cm109.c
+++ b/drivers/input/misc/cm109.c
@@ -601,6 +601,9 @@ static int cm109_input_ev(struct input_dev *idev, unsigned int type,
{
        struct cm109_dev *dev = input_get_drvdata(idev);
+       if (!dev->open)
+               return -ENODEV;
+
        dev_dbg(&dev->intf->dev,
                "input_ev: type=%u code=%u value=%d\n", type, code, value);
--
2.43.0