net: at91_ether: use module_platform_driver_probe()

This patch uses module_platform_driver_probe() macro which makes
the code smaller and simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cadence/at91_ether.c

@@ -519,18 +519,7 @@ static struct platform_driver at91ether_driver = {
 	},
 };
 
-static int __init at91ether_init(void)
-{
-	return platform_driver_probe(&at91ether_driver, at91ether_probe);
-}
-
-static void __exit at91ether_exit(void)
-{
-	platform_driver_unregister(&at91ether_driver);
-}
-
-module_init(at91ether_init)
-module_exit(at91ether_exit)
+module_platform_driver_probe(at91ether_driver, at91ether_probe);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("AT91RM9200 EMAC Ethernet driver");