ide: use unique names for struct pci_driver instances

Noticed-by: Russell King <rmk+lkml@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c
index f0db38b..6048eda 100644
--- a/drivers/ide/pci/opti621.c
+++ b/drivers/ide/pci/opti621.c
@@ -220,7 +220,7 @@
 };
 MODULE_DEVICE_TABLE(pci, opti621_pci_tbl);
 
-static struct pci_driver driver = {
+static struct pci_driver opti621_pci_driver = {
 	.name		= "Opti621_IDE",
 	.id_table	= opti621_pci_tbl,
 	.probe		= opti621_init_one,
@@ -231,12 +231,12 @@
 
 static int __init opti621_ide_init(void)
 {
-	return ide_pci_register_driver(&driver);
+	return ide_pci_register_driver(&opti621_pci_driver);
 }
 
 static void __exit opti621_ide_exit(void)
 {
-	pci_unregister_driver(&driver);
+	pci_unregister_driver(&opti621_pci_driver);
 }
 
 module_init(opti621_ide_init);