From 2459f5861249c92fce35b4f3c6e8ca6257b3c94e Mon Sep 17 00:00:00 2001
From: Zsolt Felfoldi <zsfelfoldi@gmail.com>
Date: Tue, 11 Sep 2018 11:38:56 +0200
Subject: [PATCH] les: fix distReq.sentChn double close bug

---
 les/distributor.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/les/distributor.go b/les/distributor.go
index d3f6b21d18..f90765b624 100644
--- a/les/distributor.go
+++ b/les/distributor.go
@@ -114,7 +114,9 @@ func (d *requestDistributor) loop() {
 			d.lock.Lock()
 			elem := d.reqQueue.Front()
 			for elem != nil {
-				close(elem.Value.(*distReq).sentChn)
+				req := elem.Value.(*distReq)
+				close(req.sentChn)
+				req.sentChn = nil
 				elem = elem.Next()
 			}
 			d.lock.Unlock()