net: mdio-octeon: Use module_platform_driver()

module_platform_driver macro removes some boilerplate and
simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: David Daney <ddaney@caviumnetworks.com>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/phy/mdio-octeon.c b/drivers/net/phy/mdio-octeon.c
index 09297fe..c2c878d 100644
--- a/drivers/net/phy/mdio-octeon.c
+++ b/drivers/net/phy/mdio-octeon.c
@@ -197,18 +197,7 @@
 }
 EXPORT_SYMBOL(octeon_mdiobus_force_mod_depencency);
 
-static int __init octeon_mdiobus_mod_init(void)
-{
-	return platform_driver_register(&octeon_mdiobus_driver);
-}
-
-static void __exit octeon_mdiobus_mod_exit(void)
-{
-	platform_driver_unregister(&octeon_mdiobus_driver);
-}
-
-module_init(octeon_mdiobus_mod_init);
-module_exit(octeon_mdiobus_mod_exit);
+module_platform_driver(octeon_mdiobus_driver);
 
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 MODULE_VERSION(DRV_VERSION);