if (!list_empty (&dev->bus_list))
if (!klist_node_attached (&dev->knode_bus))
int usb_driver_claim_interface(struct usb_driver *driver,				struct usb_interface *iface, void* priv){	struct device *dev = &iface->dev;	if (dev->driver)		return -EBUSY;	dev->driver = &driver->driver;	usb_set_intfdata(iface, priv);	iface->condition = USB_INTERFACE_BOUND;	/* if interface was already added, bind now; else let	 * the future device_add() bind it, bypassing probe()	 */	if (!list_empty (&dev->bus_list))		device_bind_driver(dev);	return 0;}