From 971be13e773f133a0a5ab08957725b43452202e2 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Wed, 27 Feb 2019 02:20:17 +0100
Subject: [PATCH] tun: linux: netlink sock needs cleaning up but file will be
 gc'd

---
 tun/tun_linux.go | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/tun/tun_linux.go b/tun/tun_linux.go
index 8dcad6b..0ee9f6c 100644
--- a/tun/tun_linux.go
+++ b/tun/tun_linux.go
@@ -390,7 +390,6 @@ func CreateTUNFromFile(file *os.File, mtu int) (TUNDevice, error) {
 
 	_, err = tun.Name()
 	if err != nil {
-		tun.tunFile.Close()
 		return nil, err
 	}
 
@@ -403,12 +402,11 @@ func CreateTUNFromFile(file *os.File, mtu int) (TUNDevice, error) {
 
 	tun.netlinkSock, err = createNetlinkSocket()
 	if err != nil {
-		tun.tunFile.Close()
 		return nil, err
 	}
 	tun.netlinkCancel, err = rwcancel.NewRWCancel(tun.netlinkSock)
 	if err != nil {
-		tun.tunFile.Close()
+		unix.Close(tun.netlinkSock)
 		return nil, err
 	}
 
@@ -418,7 +416,7 @@ func CreateTUNFromFile(file *os.File, mtu int) (TUNDevice, error) {
 
 	err = tun.setMTU(mtu)
 	if err != nil {
-		tun.Close()
+		unix.Close(tun.netlinkSock)
 		return nil, err
 	}