From 1accb4da40cc6b555b81257da352be07727502b9 Mon Sep 17 00:00:00 2001
From: Derek <crquan@gmail.com>
Date: Tue, 7 Jul 2015 16:56:24 -0700
Subject: [PATCH] fix file descriptor leak of ".../ip_local_port_range"

fix file descriptor leak of "/proc/sys/net/ipv4/ip_local_port_range"
---
 portallocator/portallocator.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/portallocator/portallocator.go b/portallocator/portallocator.go
index 293cc92..37d9c76 100644
--- a/portallocator/portallocator.go
+++ b/portallocator/portallocator.go
@@ -108,6 +108,9 @@ func getDynamicPortRange() (start int, end int, err error) {
 	if err != nil {
 		return 0, 0, fmt.Errorf("port allocator - %s due to error: %v", portRangeFallback, err)
 	}
+
+	defer file.Close()
+
 	n, err := fmt.Fscanf(bufio.NewReader(file), "%d\t%d", &start, &end)
 	if n != 2 || err != nil {
 		if err == nil {