xen/blkfront: add __exit to module_exit() handlers

From: Jan Beulich <[email protected]>

---
drivers/block/xen-blkfront.c | 2 +-

1 file changed, 1 insertion(+), 1 deletion(-)

===================================================================

@@ -1045,7 +1045,7 @@

module_init(xlblk_init);

-static void xlblk_exit(void)
+static void __exit xlblk_exit(void)

{
	return xenbus_unregister_driver(&blkfront);
}