From ba9bbebe6202ef317f7fe2dc19472ce0285d7882 Mon Sep 17 00:00:00 2001
From: Franco Fichtner <franco@opnsense.org>
Date: Sat, 6 Feb 2016 11:37:27 +0100
Subject: [PATCH] interfaces: fix a crash report

---
 src/www/interfaces.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/www/interfaces.php b/src/www/interfaces.php
index d8fa188e3..aed80be0c 100644
--- a/src/www/interfaces.php
+++ b/src/www/interfaces.php
@@ -612,7 +612,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
                 do_input_validation($pconfig, $reqdfields, $reqdfieldsn, $input_errors);
                 break;
             case "none":
-                if (is_array($config['virtualip']['vip'])) {
+                if (isset($config['virtualip']['vip'])) {
                     foreach ($config['virtualip']['vip'] as $vip) {
                         if (is_ipaddrv4($vip['subnet']) && $vip['interface'] == $if) {
                             $input_errors[] = gettext("This interface is referenced by IPv4 VIPs. Please delete those before setting the interface to 'none' configuration.");