On Wed, 19 Dec 2012, lantianyu wrote: > >> I just find busy_bits is set or clear in the usb_port_resume() and > >> usb_reset_and_verify_device(). So currently we should keep my changes > >> mutually exclusive with them, right? > > > > Don't forget about what happens when a device is removed. > I am not very clear about this since busy_bits is not changed during device being > removed. Could you elaborate? Thanks. What happens if the device is unplugged while some thread is using busy_bits? Will the hub driver realize that the device is gone? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
