71 	struct mutex		mtx;  member
356 	if (mutex_lock_interruptible(&dev->mtx))  in adu_read()
501 	mutex_unlock(&dev->mtx);  in adu_read()
519 	retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
544 			mutex_unlock(&dev->mtx);  in adu_write()
559 			retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
613 	mutex_unlock(&dev->mtx);  in adu_write()
617 	mutex_unlock(&dev->mtx);  in adu_write()
667 	mutex_init(&dev->mtx);  in adu_probe()
776 	mutex_lock(&dev->mtx);	/* not interruptible */  in adu_disconnect()
778 	mutex_unlock(&dev->mtx);  in adu_disconnect()