parport: remove use of devmodel

Now that all the drivers using parallel port has been converted to use
device model, there is no driver left which has devmodel as false.
Remove the part of the code which expects devmodel can be false.
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/r/20200403134325.11523-11-sudipm.mukherjee@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/parport/share.c

@@ -278,7 +278,6 @@ static int port_detect(struct device *dev, void *dev_drv)
 int __parport_register_driver(struct parport_driver *drv, struct module *owner,
 			      const char *mod_name)
 {
-	if (drv->devmodel) {
 	/* using device model */
 	int ret;
 
@@ -305,19 +304,6 @@ int __parport_register_driver(struct parport_driver *drv, struct module *owner,
 		bus_for_each_dev(&parport_bus_type, NULL, drv,
 				 port_check);
 	mutex_unlock(&registration_lock);
-	} else {
-		struct parport *port;
-
-		drv->devmodel = false;
-
-		if (list_empty(&portlist))
-			get_lowlevel_driver();
-		mutex_lock(&registration_lock);
-		list_for_each_entry(port, &portlist, list)
-			drv->attach(port);
-		list_add(&drv->list, &drivers);
-		mutex_unlock(&registration_lock);
-	}
 
 	return 0;
 }
@@ -352,17 +338,9 @@ static int port_detach(struct device *dev, void *_drv)
 
 void parport_unregister_driver(struct parport_driver *drv)
 {
-	struct parport *port;
-
 	mutex_lock(&registration_lock);
-	if (drv->devmodel) {
 	bus_for_each_dev(&parport_bus_type, NULL, drv, port_detach);
 	driver_unregister(&drv->driver);
-	} else {
-		list_del_init(&drv->list);
-		list_for_each_entry(port, &portlist, list)
-			drv->detach(port);
-	}
 	mutex_unlock(&registration_lock);
 }
 EXPORT_SYMBOL(parport_unregister_driver);
@@ -915,10 +893,7 @@ void parport_unregister_device(struct pardevice *dev)
 	spin_unlock_irq(&port->waitlist_lock);
 
 	kfree(dev->state);
-	if (dev->devmodel)
 	device_unregister(&dev->dev);
-	else
-		kfree(dev);
 
 	module_put(port->ops->owner);
 	parport_put_port(port);