diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index dfedd56..3fd0600 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -368,7 +368,7 @@
 	}
 out:
 	write_unlock(&ipip6_lock);
-	return 0;
+	return err;
 }
 
 static int