diff --git a/net/socket.c b/net/socket.c
index 98be7ef..f40957a 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2063,6 +2063,8 @@
 #ifdef CONFIG_NETFILTER
 	netfilter_init();
 #endif
+
+	return 0;
 }
 
 core_initcall(sock_init);	/* early initcall */