i2c/busses: Use module_pci_driver

Convert the drivers in drivers/i2c/busses/* to usemodule_pci_driver()
macro which makes the code smaller and a bit simpler.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rudolf Marek <r.marek@assembler.cz>
Cc: Olof Johansson <olof@lixom.net>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Cc: Tomoya MORINAGA <tomoya.rohm@gmail.com>
diff --git a/drivers/i2c/busses/i2c-sis630.c b/drivers/i2c/busses/i2c-sis630.c
index 15cf78f..5d6723b 100644
--- a/drivers/i2c/busses/i2c-sis630.c
+++ b/drivers/i2c/busses/i2c-sis630.c
@@ -513,21 +513,8 @@
 	.remove		= __devexit_p(sis630_remove),
 };
 
-static int __init i2c_sis630_init(void)
-{
-	return pci_register_driver(&sis630_driver);
-}
-
-
-static void __exit i2c_sis630_exit(void)
-{
-	pci_unregister_driver(&sis630_driver);
-}
-
+module_pci_driver(sis630_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Alexander Malysh <amalysh@web.de>");
 MODULE_DESCRIPTION("SIS630 SMBus driver");
-
-module_init(i2c_sis630_init);
-module_exit(i2c_sis630_exit);