66 	struct mutex		io_mutex;  member
208 	mutex_init(&dev->io_mutex);  in yurex_probe()
335 	mutex_lock(&dev->io_mutex);  in yurex_disconnect()
337 	mutex_unlock(&dev->io_mutex);  in yurex_disconnect()
392 	mutex_lock(&dev->io_mutex);  in yurex_open()
394 	mutex_unlock(&dev->io_mutex);  in yurex_open()
424 	mutex_lock(&dev->io_mutex);  in yurex_read()
444 	mutex_unlock(&dev->io_mutex);  in yurex_read()
466 	mutex_lock(&dev->io_mutex);  in yurex_write()
468 		mutex_unlock(&dev->io_mutex);  in yurex_write()
474 		mutex_unlock(&dev->io_mutex);  in yurex_write()
507 		mutex_unlock(&dev->io_mutex);  in yurex_write()
520 	mutex_unlock(&dev->io_mutex);  in yurex_write()