From 4482cb1d6cc768ac1537573363d0dcc919dd367a Mon Sep 17 00:00:00 2001
From: Franco Fichtner <franco@opnsense.org>
Date: Fri, 24 May 2019 07:56:58 +0200
Subject: [PATCH] interfaces: code review, flip logic

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

diff --git a/src/etc/inc/interfaces.inc b/src/etc/inc/interfaces.inc
index e8f95c188..840352f27 100644
--- a/src/etc/inc/interfaces.inc
+++ b/src/etc/inc/interfaces.inc
@@ -3588,7 +3588,7 @@ function get_parent_interface($interface, $avoidrecurse = false)
     $parents = array();
 
     $realif = get_real_interface($interface);
-    if (does_interface_exist($realif)) {
+    if (!does_interface_exist($realif)) {
         return $parents;
     }