From 90475d5339603ee1671df5abe4f3f49369e83230 Mon Sep 17 00:00:00 2001
From: Wilmer Paulino <wilmer.paulino@gmail.com>
Date: Mon, 15 Apr 2019 12:49:34 -0700
Subject: [PATCH] discovery: check nil policy within isMsgStale

If both policies don't exist, then this would result in a panic. Since
they don't exist, we can assume the policy we're currently evaluating is
fresh.
---
 discovery/gossiper.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/discovery/gossiper.go b/discovery/gossiper.go
index cc290704..aad48eb8 100644
--- a/discovery/gossiper.go
+++ b/discovery/gossiper.go
@@ -2361,6 +2361,12 @@ func (d *AuthenticatedGossiper) isMsgStale(msg lnwire.Message) bool {
 			p = p2
 		}
 
+		// If the policy is still unknown, then we can consider this
+		// policy fresh.
+		if p == nil {
+			return false
+		}
+
 		timestamp := time.Unix(int64(msg.Timestamp), 0)
 		return p.LastUpdate.After(timestamp)