diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 575c64341508eb12119eb120349de4704525648a..66f6ba0bab11932c9b1302a555f9bcefb52065dd 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -136,7 +136,7 @@ int genl_register_mc_group(struct genl_family *family,
 {
 	int id;
 	unsigned long *new_groups;
-	int err;
+	int err = 0;
 
 	BUG_ON(grp->name[0] == '\0');