rfkill: Use subsys_initcall

We must use subsys_initcall, because we must initialize before a
driver calls rfkill_register().

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index c6a9412..bbfbb9e 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -449,5 +449,5 @@
 	class_unregister(&rfkill_class);
 }
 
-module_init(rfkill_init);
+subsys_initcall(rfkill_init);
 module_exit(rfkill_exit);