Oliver Neukum [mailto:oli...@neukum.org] > Sent: Sunday, October 19, 2014 3:48 AM [...] > The diagnosis is good, the fix is not good. It opens a race > during which the queued work can touch a suspended device.
The delayed work would wake up the device by calling usb_autopm_get_interface() before accessing the device. Besides, there is a mutex to avoid the race. Best Regards, Hayes -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/