76 	struct mutex		mtx;  member
355 	if (mutex_lock_interruptible(&dev->mtx))  in adu_read()
505 	mutex_unlock(&dev->mtx);  in adu_read()
523 	retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
548 			mutex_unlock(&dev->mtx);  in adu_write()
563 			retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
617 	mutex_unlock(&dev->mtx);  in adu_write()
621 	mutex_unlock(&dev->mtx);  in adu_write()
681 	mutex_init(&dev->mtx);  in adu_probe()
807 	mutex_lock(&dev->mtx);	/* not interruptible */  in adu_disconnect()
811 	mutex_unlock(&dev->mtx);  in adu_disconnect()