71 static struct mtty_dev {  struct
77 } mtty_dev;  argument
1318 	memset(&mtty_dev, 0, sizeof(mtty_dev));  in mtty_dev_init()
1320 	idr_init(&mtty_dev.vd_idr);  in mtty_dev_init()
1322 	ret = alloc_chrdev_region(&mtty_dev.vd_devt, 0, MINORMASK + 1,  in mtty_dev_init()
1330 	cdev_init(&mtty_dev.vd_cdev, &vd_fops);  in mtty_dev_init()
1331 	cdev_add(&mtty_dev.vd_cdev, mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_init()
1333 	pr_info("major_number:%d\n", MAJOR(mtty_dev.vd_devt));  in mtty_dev_init()
1339 	mtty_dev.vd_class = class_create(THIS_MODULE, MTTY_CLASS_NAME);  in mtty_dev_init()
1341 	if (IS_ERR(mtty_dev.vd_class)) {  in mtty_dev_init()
1343 		ret = PTR_ERR(mtty_dev.vd_class);  in mtty_dev_init()
1347 	mtty_dev.dev.class = mtty_dev.vd_class;  in mtty_dev_init()
1348 	mtty_dev.dev.release = mtty_device_release;  in mtty_dev_init()
1349 	dev_set_name(&mtty_dev.dev, "%s", MTTY_NAME);  in mtty_dev_init()
1351 	ret = device_register(&mtty_dev.dev);  in mtty_dev_init()
1355 	ret = mdev_register_device(&mtty_dev.dev, &mtty_driver);  in mtty_dev_init()
1361 	device_unregister(&mtty_dev.dev);  in mtty_dev_init()
1363 	class_destroy(mtty_dev.vd_class);  in mtty_dev_init()
1367 	cdev_del(&mtty_dev.vd_cdev);  in mtty_dev_init()
1368 	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_init()
1374 	mtty_dev.dev.bus = NULL;  in mtty_dev_exit()
1375 	mdev_unregister_device(&mtty_dev.dev);  in mtty_dev_exit()
1377 	device_unregister(&mtty_dev.dev);  in mtty_dev_exit()
1378 	idr_destroy(&mtty_dev.vd_idr);  in mtty_dev_exit()
1380 	cdev_del(&mtty_dev.vd_cdev);  in mtty_dev_exit()
1381 	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);  in mtty_dev_exit()
1382 	class_destroy(mtty_dev.vd_class);  in mtty_dev_exit()
1383 	mtty_dev.vd_class = NULL;  in mtty_dev_exit()