From 846337ad41443605e4e9c7a7bf9039bbfcdeb05f Mon Sep 17 00:00:00 2001
From: Wolfgang Bumiller <w.bumiller@proxmox.com>
Date: Mon, 18 Jan 2016 09:17:23 +0100
Subject: [PATCH] network: fix uninitialized value error

---
 src/PVE/Network.pm | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/PVE/Network.pm b/src/PVE/Network.pm
index 293ebfa..8cfac0d 100644
--- a/src/PVE/Network.pm
+++ b/src/PVE/Network.pm
@@ -177,10 +177,12 @@ my $bridge_add_interface = sub {
 	    die "unable to add default vlan tags to interface $iface\n" if !$trunks;
 	} 
 
-        my @trunks_array = split /;/, $trunks;
-	foreach my $trunk (@trunks_array) { 
-	    system("/sbin/bridge vlan add dev $iface vid $trunk") == 0 ||
-	    die "unable to add vlan $trunk to interface $iface\n";
+	if ($trunks) {
+	    my @trunks_array = split /;/, $trunks;
+	    foreach my $trunk (@trunks_array) { 
+		system("/sbin/bridge vlan add dev $iface vid $trunk") == 0 ||
+		die "unable to add vlan $trunk to interface $iface\n";
+	    }
 	}
    }
 };
-- 
2.39.2