71 static struct mtty_dev {  struct
77 } mtty_dev;  argument
1415 	memset(&mtty_dev, 0, sizeof(mtty_dev));  in mtty_dev_init()
1417 	idr_init(&mtty_dev.vd_idr);  in mtty_dev_init()
1419 	ret = alloc_chrdev_region(&mtty_dev.vd_devt, 0, MINORMASK + 1,  in mtty_dev_init()
1427 	cdev_init(&mtty_dev.vd_cdev, &vd_fops);  in mtty_dev_init()
1428 	cdev_add(&mtty_dev.vd_cdev, mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_init()
1430 	pr_info("major_number:%d\n", MAJOR(mtty_dev.vd_devt));  in mtty_dev_init()
1432 	mtty_dev.vd_class = class_create(THIS_MODULE, MTTY_CLASS_NAME);  in mtty_dev_init()
1434 	if (IS_ERR(mtty_dev.vd_class)) {  in mtty_dev_init()
1436 		ret = PTR_ERR(mtty_dev.vd_class);  in mtty_dev_init()
1440 	mtty_dev.dev.class = mtty_dev.vd_class;  in mtty_dev_init()
1441 	mtty_dev.dev.release = mtty_device_release;  in mtty_dev_init()
1442 	dev_set_name(&mtty_dev.dev, "%s", MTTY_NAME);  in mtty_dev_init()
1444 	ret = device_register(&mtty_dev.dev);  in mtty_dev_init()
1448 	ret = mdev_register_device(&mtty_dev.dev, &mdev_fops);  in mtty_dev_init()
1459 	device_unregister(&mtty_dev.dev);  in mtty_dev_init()
1461 	class_destroy(mtty_dev.vd_class);  in mtty_dev_init()
1464 	cdev_del(&mtty_dev.vd_cdev);  in mtty_dev_init()
1465 	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_init()
1473 	mtty_dev.dev.bus = NULL;  in mtty_dev_exit()
1474 	mdev_unregister_device(&mtty_dev.dev);  in mtty_dev_exit()
1476 	device_unregister(&mtty_dev.dev);  in mtty_dev_exit()
1477 	idr_destroy(&mtty_dev.vd_idr);  in mtty_dev_exit()
1478 	cdev_del(&mtty_dev.vd_cdev);  in mtty_dev_exit()
1479 	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_exit()
1480 	class_destroy(mtty_dev.vd_class);  in mtty_dev_exit()
1481 	mtty_dev.vd_class = NULL;  in mtty_dev_exit()