71 static struct mtty_dev {  struct
78 } mtty_dev;  argument
1983 	memset(&mtty_dev, 0, sizeof(mtty_dev));  in mtty_dev_init()
1985 	idr_init(&mtty_dev.vd_idr);  in mtty_dev_init()
1987 	ret = alloc_chrdev_region(&mtty_dev.vd_devt, 0, MINORMASK + 1,  in mtty_dev_init()
1995 	cdev_init(&mtty_dev.vd_cdev, &vd_fops);  in mtty_dev_init()
1996 	cdev_add(&mtty_dev.vd_cdev, mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_init()
1998 	pr_info("major_number:%d\n", MAJOR(mtty_dev.vd_devt));  in mtty_dev_init()
2004 	mtty_dev.vd_class = class_create(MTTY_CLASS_NAME);  in mtty_dev_init()
2006 	if (IS_ERR(mtty_dev.vd_class)) {  in mtty_dev_init()
2008 		ret = PTR_ERR(mtty_dev.vd_class);  in mtty_dev_init()
2012 	mtty_dev.dev.class = mtty_dev.vd_class;  in mtty_dev_init()
2013 	mtty_dev.dev.release = mtty_device_release;  in mtty_dev_init()
2014 	dev_set_name(&mtty_dev.dev, "%s", MTTY_NAME);  in mtty_dev_init()
2016 	ret = device_register(&mtty_dev.dev);  in mtty_dev_init()
2020 	ret = mdev_register_parent(&mtty_dev.parent, &mtty_dev.dev,  in mtty_dev_init()
2028 	device_del(&mtty_dev.dev);  in mtty_dev_init()
2030 	put_device(&mtty_dev.dev);  in mtty_dev_init()
2031 	class_destroy(mtty_dev.vd_class);  in mtty_dev_init()
2035 	cdev_del(&mtty_dev.vd_cdev);  in mtty_dev_init()
2036 	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_init()
2042 	mtty_dev.dev.bus = NULL;  in mtty_dev_exit()
2043 	mdev_unregister_parent(&mtty_dev.parent);  in mtty_dev_exit()
2045 	device_unregister(&mtty_dev.dev);  in mtty_dev_exit()
2046 	idr_destroy(&mtty_dev.vd_idr);  in mtty_dev_exit()
2048 	cdev_del(&mtty_dev.vd_cdev);  in mtty_dev_exit()
2049 	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_exit()
2050 	class_destroy(mtty_dev.vd_class);  in mtty_dev_exit()
2051 	mtty_dev.vd_class = NULL;  in mtty_dev_exit()