From adfa9a2402add8d5c6fe55b35fd0bf745597113b Mon Sep 17 00:00:00 2001
From: Li Yi <denverdino@gmail.com>
Date: Thu, 18 Jan 2018 18:41:24 +0800
Subject: [PATCH] Fix NPE in dialer

Signed-off-by: Li Yi <denverdino@gmail.com>
---
 dialer/dialer.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dialer/dialer.go b/dialer/dialer.go
index 65af69f9b..1ad4ab718 100644
--- a/dialer/dialer.go
+++ b/dialer/dialer.go
@@ -42,7 +42,7 @@ func Dialer(address string, timeout time.Duration) (net.Conn, error) {
 		close(stopC)
 		go func() {
 			dr := <-synC
-			if dr != nil {
+			if dr != nil && dr.c != nil {
 				dr.c.Close()
 			}
 		}()