From 15b42b89db5bd9488738ce33d35d96f8974a13cf Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 31 Aug 2016 17:19:41 +0930
Subject: [PATCH] peer: fix comparison bug if our connection_fee is negative.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 daemon/peer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/daemon/peer.c b/daemon/peer.c
index 7b5d17c5e..da14a13e0 100644
--- a/daemon/peer.c
+++ b/daemon/peer.c
@@ -457,7 +457,8 @@ static void route_htlc_onwards(struct peer *peer,
 		return;
 	
 	/* Offered fee must be sufficient. */
-	if (htlc->msatoshis - msatoshis < connection_fee(next->nc, msatoshis)) {
+	if ((s64)(htlc->msatoshis - msatoshis)
+	    < connection_fee(next->nc, msatoshis)) {
 		log_unusual(peer->log,
 			    "Insufficient fee for HTLC %"PRIu64
 			    ": %"PRIi64" on %"PRIu64,