From 6791cf7d7f06de838cafecbe63892ff3ddb90ceb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20M=C3=B6ller?= <fabianm88@gmail.com>
Date: Sat, 12 May 2018 18:59:25 +0200
Subject: [PATCH] atexit: prevent Run from being called on nil signal

---
 lib/atexit/atexit.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/atexit/atexit.go b/lib/atexit/atexit.go
index 8e44769d3..3f0bfa49a 100644
--- a/lib/atexit/atexit.go
+++ b/lib/atexit/atexit.go
@@ -29,7 +29,7 @@ func Register(fn func()) {
 		signal.Notify(exitChan, os.Interrupt) // syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT
 		go func() {
 			sig, closed := <-exitChan
-			if closed {
+			if closed || sig == nil {
 				return
 			}
 			fs.Infof(nil, "Signal received: %s", sig)