[PATCH 0/2] USB: HID: Fix race between disconnect and hiddev_ioctl

[Valentine Barshak]

If a USB HID device is disconneceted, the hiddev_ioctl could try
to access invalid hiddev->hid pointer.

The following two patches attempt to fix race condition between
disconnect and hiddev_ioctl and make hiddev_ioctl always return
-ENODEV on a disconnected device.
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