From b2d9eb2e36af0e860d2bf495bff902b472196c6a Mon Sep 17 00:00:00 2001
From: Franco Fichtner <franco@opnsense.org>
Date: Fri, 20 Jan 2023 10:15:27 +0100
Subject: [PATCH] system: fix undefined var edge case

---
 src/etc/inc/system.inc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/etc/inc/system.inc b/src/etc/inc/system.inc
index 1c91a4e36..dbe3a7514 100644
--- a/src/etc/inc/system.inc
+++ b/src/etc/inc/system.inc
@@ -418,6 +418,7 @@ function get_nameservers($interface = null, $with_gateway = false)
 
         $gwkey = "dns{$dnscounter}gw";
         $gateway = null;
+        $dnsif = null;
 
         if (!empty($syscfg[$gwkey]) && $syscfg[$gwkey] != 'none') {
             /* if a gateway is attached figure out the interface and address */