ata: use module_pci_driver

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

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Cc: Mark Lord <kernel@teksavvy.com>
Cc: Jeremy Higdon <jeremy@sgi.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/ata/pata_artop.c

@@ -451,18 +451,7 @@ static struct pci_driver artop_pci_driver = {
 #endif
 };
 
-static int __init artop_init(void)
-{
-	return pci_register_driver(&artop_pci_driver);
-}
-
-static void __exit artop_exit(void)
-{
-	pci_unregister_driver(&artop_pci_driver);
-}
-
-module_init(artop_init);
-module_exit(artop_exit);
+module_pci_driver(artop_pci_driver);
 
 MODULE_AUTHOR("Alan Cox, Bartlomiej Zolnierkiewicz");
 MODULE_DESCRIPTION("SCSI low-level driver for ARTOP PATA");