Input: gameport - use module_gameport_driver

This patch converts the drivers in drivers/input/* to use
module_gameport_driver() macro which makes the code smaller
and a bit simpler.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/joystick/tmdc.c b/drivers/input/joystick/tmdc.c
index d6c6098..5ef9bcd 100644
--- a/drivers/input/joystick/tmdc.c
+++ b/drivers/input/joystick/tmdc.c
@@ -436,15 +436,4 @@
 	.disconnect	= tmdc_disconnect,
 };
 
-static int __init tmdc_init(void)
-{
-	return gameport_register_driver(&tmdc_drv);
-}
-
-static void __exit tmdc_exit(void)
-{
-	gameport_unregister_driver(&tmdc_drv);
-}
-
-module_init(tmdc_init);
-module_exit(tmdc_exit);
+module_gameport_driver(tmdc_drv);