71 static struct mtty_dev {  struct
78 } mtty_dev;  argument
1962 	memset(&mtty_dev, 0, sizeof(mtty_dev));  in mtty_dev_init()
1964 	idr_init(&mtty_dev.vd_idr);  in mtty_dev_init()
1966 	ret = alloc_chrdev_region(&mtty_dev.vd_devt, 0, MINORMASK + 1,  in mtty_dev_init()
1974 	cdev_init(&mtty_dev.vd_cdev, &vd_fops);  in mtty_dev_init()
1975 	cdev_add(&mtty_dev.vd_cdev, mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_init()
1977 	pr_info("major_number:%d\n", MAJOR(mtty_dev.vd_devt));  in mtty_dev_init()
1983 	mtty_dev.vd_class = class_create(MTTY_CLASS_NAME);  in mtty_dev_init()
1985 	if (IS_ERR(mtty_dev.vd_class)) {  in mtty_dev_init()
1987 		ret = PTR_ERR(mtty_dev.vd_class);  in mtty_dev_init()
1991 	mtty_dev.dev.class = mtty_dev.vd_class;  in mtty_dev_init()
1992 	mtty_dev.dev.release = mtty_device_release;  in mtty_dev_init()
1993 	dev_set_name(&mtty_dev.dev, "%s", MTTY_NAME);  in mtty_dev_init()
1995 	ret = device_register(&mtty_dev.dev);  in mtty_dev_init()
1999 	ret = mdev_register_parent(&mtty_dev.parent, &mtty_dev.dev,  in mtty_dev_init()
2007 	device_del(&mtty_dev.dev);  in mtty_dev_init()
2009 	put_device(&mtty_dev.dev);  in mtty_dev_init()
2010 	class_destroy(mtty_dev.vd_class);  in mtty_dev_init()
2014 	cdev_del(&mtty_dev.vd_cdev);  in mtty_dev_init()
2015 	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_init()
2021 	mtty_dev.dev.bus = NULL;  in mtty_dev_exit()
2022 	mdev_unregister_parent(&mtty_dev.parent);  in mtty_dev_exit()
2024 	device_unregister(&mtty_dev.dev);  in mtty_dev_exit()
2025 	idr_destroy(&mtty_dev.vd_idr);  in mtty_dev_exit()
2027 	cdev_del(&mtty_dev.vd_cdev);  in mtty_dev_exit()
2028 	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_exit()
2029 	class_destroy(mtty_dev.vd_class);  in mtty_dev_exit()
2030 	mtty_dev.vd_class = NULL;  in mtty_dev_exit()