From a475c435ecdcce0291e50547d6160c48c43ce304 Mon Sep 17 00:00:00 2001
From: Andrew Dunham <andrew@du.nham.ca>
Date: Tue, 25 Jun 2024 22:58:45 -0400
Subject: [PATCH] net/dns/resolver: fix test failure

Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I0e815a69ee44ca0ff7c0ea0ca3c6904bbf67ed1f
---
 net/dns/resolver/forwarder.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/dns/resolver/forwarder.go b/net/dns/resolver/forwarder.go
index ecc3ce5ea..8676aebc7 100644
--- a/net/dns/resolver/forwarder.go
+++ b/net/dns/resolver/forwarder.go
@@ -889,7 +889,9 @@ func (f *forwarder) forwardWithDestChan(ctx context.Context, query packet, respo
 			// Attempt to recompile the DNS configuration
 			// If we are being asked to forward queries and we have no
 			// nameservers, the network is in a bad state.
-			f.missingUpstreamRecovery()
+			if f.missingUpstreamRecovery != nil {
+				f.missingUpstreamRecovery()
+			}
 
 			res, err := servfailResponse(query)
 			if err != nil {