71 	struct mutex		mtx;  member
355 	if (mutex_lock_interruptible(&dev->mtx))  in adu_read()
500 	mutex_unlock(&dev->mtx);  in adu_read()
518 	retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
543 			mutex_unlock(&dev->mtx);  in adu_write()
558 			retval = mutex_lock_interruptible(&dev->mtx);  in adu_write()
612 	mutex_unlock(&dev->mtx);  in adu_write()
616 	mutex_unlock(&dev->mtx);  in adu_write()
666 	mutex_init(&dev->mtx);  in adu_probe()
775 	mutex_lock(&dev->mtx);	/* not interruptible */  in adu_disconnect()
777 	mutex_unlock(&dev->mtx);  in adu_disconnect()