71 	struct mutex		mtx;  member
356 	if (mutex_lock_interruptible(&dev->mtx))  in adu_read()
498 	mutex_unlock(&dev->mtx);  in adu_read()
516 	retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
541 			mutex_unlock(&dev->mtx);  in adu_write()
556 			retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
610 	mutex_unlock(&dev->mtx);  in adu_write()
614 	mutex_unlock(&dev->mtx);  in adu_write()
664 	mutex_init(&dev->mtx);  in adu_probe()
773 	mutex_lock(&dev->mtx);	/* not interruptible */  in adu_disconnect()
775 	mutex_unlock(&dev->mtx);  in adu_disconnect()