From 64c8e2f2ca01de506146027cccf2fafea03b7f09 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Mon, 14 Mar 2016 17:08:15 +0200
Subject: [PATCH] p2p/nat: fix #2291, NAT discovery did't abort on failure

---
 p2p/nat/natupnp.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/p2p/nat/natupnp.go b/p2p/nat/natupnp.go
index 890a350434..804396e94d 100644
--- a/p2p/nat/natupnp.go
+++ b/p2p/nat/natupnp.go
@@ -139,6 +139,7 @@ func discoverUPnP() Interface {
 func discover(out chan<- *upnp, target string, matcher func(*goupnp.RootDevice, goupnp.ServiceClient) *upnp) {
 	devs, err := goupnp.DiscoverDevices(target)
 	if err != nil {
+		out <- nil
 		return
 	}
 	found := false