From a971c561d1165cb79919fe966e7f2bd8dbbadcd6 Mon Sep 17 00:00:00 2001
From: Alexander Morozov <lk4d4@docker.com>
Date: Wed, 9 Mar 2016 09:31:22 -0800
Subject: [PATCH] Close dbus connection if firewalld is not started

Signed-off-by: Alexander Morozov <lk4d4@docker.com>
---
 libnetwork/iptables/firewalld.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libnetwork/iptables/firewalld.go b/libnetwork/iptables/firewalld.go
index 246ce4d7a1..970931ce91 100644
--- a/libnetwork/iptables/firewalld.go
+++ b/libnetwork/iptables/firewalld.go
@@ -44,11 +44,15 @@ func FirewalldInit() error {
 	if connection, err = newConnection(); err != nil {
 		return fmt.Errorf("Failed to connect to D-Bus system bus: %v", err)
 	}
+	firewalldRunning = checkRunning()
+	if !firewalldRunning {
+		connection.sysconn.Close()
+		connection = nil
+	}
 	if connection != nil {
 		go signalHandler()
 	}
 
-	firewalldRunning = checkRunning()
 	return nil
 }