Input: gameport - fix attach driver code

The commit 6902c0bead4ce266226fc0c5b3828b850bdc884a that moved
driver registration out of kgameportd thread was incomplete and
did not add the code necessary to actually attach driver to
already registered devices, rectify that.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index ebf4be5..2d175b5 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -50,9 +50,8 @@
 
 static struct bus_type gameport_bus;
 
-static void gameport_add_driver(struct gameport_driver *drv);
 static void gameport_add_port(struct gameport *gameport);
-static void gameport_destroy_port(struct gameport *gameport);
+static void gameport_attach_driver(struct gameport_driver *drv);
 static void gameport_reconnect_port(struct gameport *gameport);
 static void gameport_disconnect_port(struct gameport *gameport);
 
@@ -230,7 +229,6 @@
 
 enum gameport_event_type {
 	GAMEPORT_REGISTER_PORT,
-	GAMEPORT_REGISTER_DRIVER,
 	GAMEPORT_ATTACH_DRIVER,
 };
 
@@ -374,8 +372,8 @@
 				gameport_add_port(event->object);
 				break;
 
-			case GAMEPORT_REGISTER_DRIVER:
-				gameport_add_driver(event->object);
+			case GAMEPORT_ATTACH_DRIVER:
+				gameport_attach_driver(event->object);
 				break;
 
 			default:
@@ -706,14 +704,14 @@
 	return 0;
 }
 
-static void gameport_add_driver(struct gameport_driver *drv)
+static void gameport_attach_driver(struct gameport_driver *drv)
 {
 	int error;
 
-	error = driver_register(&drv->driver);
+	error = driver_attach(&drv->driver);
 	if (error)
 		printk(KERN_ERR
-			"gameport: driver_register() failed for %s, error: %d\n",
+			"gameport: driver_attach() failed for %s, error: %d\n",
 			drv->driver.name, error);
 }