diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index af47bdf2f483..b6e3abe505ac 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -141,6 +141,7 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
 		metadata->u.tun_info.mode |= IP_TUNNEL_INFO_TX;
 		break;
 	default:
+		ret = -EINVAL;
 		goto err_out;
 	}