60 static struct usb_class {  struct
63 } *usb_class;  argument
79 	if (usb_class != NULL) {  in init_usb_class()
80 		kref_get(&usb_class->kref);  in init_usb_class()
84 	usb_class = kmalloc(sizeof(*usb_class), GFP_KERNEL);  in init_usb_class()
85 	if (!usb_class) {  in init_usb_class()
90 	kref_init(&usb_class->kref);  in init_usb_class()
91 	usb_class->class = class_create(THIS_MODULE, "usbmisc");  in init_usb_class()
92 	if (IS_ERR(usb_class->class)) {  in init_usb_class()
93 		result = PTR_ERR(usb_class->class);  in init_usb_class()
95 		kfree(usb_class);  in init_usb_class()
96 		usb_class = NULL;  in init_usb_class()
99 	usb_class->class->devnode = usb_devnode;  in init_usb_class()
108 	class_destroy(usb_class->class);  in release_usb_class()
109 	kfree(usb_class);  in release_usb_class()
110 	usb_class = NULL;  in release_usb_class()
116 	kref_put(&usb_class->kref, release_usb_class);  in destroy_usb_class()
203 	intf->usb_dev = device_create(usb_class->class, &intf->dev,  in usb_register_dev()
237 	device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor));  in usb_deregister_dev()