From 4e5a568063e72d8926287955f3820e22db6f4e5b Mon Sep 17 00:00:00 2001
From: Asim Aslam <asim@aslam.me>
Date: Wed, 23 Oct 2019 21:24:31 +0100
Subject: [PATCH] races, race conditions everywhere

---
 tunnel/link.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tunnel/link.go b/tunnel/link.go
index 036a4830..26b568fc 100644
--- a/tunnel/link.go
+++ b/tunnel/link.go
@@ -206,6 +206,9 @@ func (l *link) Id() string {
 }
 
 func (l *link) Close() error {
+	l.Lock()
+	defer l.Unlock()
+
 	select {
 	case <-l.closed:
 		return nil