94 	struct mutex		mtx;  member
413 	if (mutex_lock_interruptible(&dev->mtx))  in adu_read()
552 	mutex_unlock(&dev->mtx);  in adu_read()
573 	retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
598 			mutex_unlock(&dev->mtx);  in adu_write()
611 			retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
661 	mutex_unlock(&dev->mtx);  in adu_write()
665 	mutex_unlock(&dev->mtx);  in adu_write()
728 	mutex_init(&dev->mtx);  in adu_probe()
858 	mutex_lock(&dev->mtx);	/* not interruptible */  in adu_disconnect()
862 	mutex_unlock(&dev->mtx);  in adu_disconnect()