usb_lock_device_interruptible
rc = usb_lock_device_interruptible(udev);
retval = usb_lock_device_interruptible(udev); \
rc = usb_lock_device_interruptible(udev);
rc = usb_lock_device_interruptible(udev);
rc = usb_lock_device_interruptible(udev); \
rv = usb_lock_device_interruptible(udev);
ret = usb_lock_device_interruptible(udev);
rc = usb_lock_device_interruptible(udev);
rc = usb_lock_device_interruptible(udev);
rc = usb_lock_device_interruptible(udev);
rc = usb_lock_device_interruptible(udev);