63 	struct mutex		io_mutex;		/* synchronize I/O with disconnect */  member
146 	mutex_lock(&dev->io_mutex);  in skel_flush()
155 	mutex_unlock(&dev->io_mutex);  in skel_flush()
237 	rv = mutex_lock_interruptible(&dev->io_mutex);  in skel_read()
328 	mutex_unlock(&dev->io_mutex);  in skel_read()
422 	mutex_lock(&dev->io_mutex);  in skel_write()
424 		mutex_unlock(&dev->io_mutex);  in skel_write()
438 	mutex_unlock(&dev->io_mutex);  in skel_write()
502 	mutex_init(&dev->io_mutex);  in skel_probe()
573 	mutex_lock(&dev->io_mutex);  in skel_disconnect()
575 	mutex_unlock(&dev->io_mutex);  in skel_disconnect()
615 	mutex_lock(&dev->io_mutex);  in skel_pre_reset()
627 	mutex_unlock(&dev->io_mutex);  in skel_post_reset()