From 710e5b0e9b3305ad0ec23a20752a017bffc34f37 Mon Sep 17 00:00:00 2001
From: qydysky <qydysky@foxmail.com>
Date: Wed, 30 Jun 2021 02:10:59 +0800
Subject: [PATCH] fix panic

---
 progLock/Lock.go      | 5 ++++-
 progLock/Lock_test.go | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/progLock/Lock.go b/progLock/Lock.go
index e3fd572..312e8ab 100644
--- a/progLock/Lock.go
+++ b/progLock/Lock.go
@@ -91,6 +91,9 @@ func (l *lock) Stop() error {
 	defer l.Unlock()
 	
 	l.stopsign = true
-	close(l.b)
+	if l.b != nil {
+		close(l.b)
+		l.b = nil
+	}
 	return os.RemoveAll(lock_file)
 }
\ No newline at end of file
diff --git a/progLock/Lock_test.go b/progLock/Lock_test.go
index 78e538e..0e250f2 100644
--- a/progLock/Lock_test.go
+++ b/progLock/Lock_test.go
@@ -11,4 +11,5 @@ func Test(t *testing.T) {
 	t.Log(New().Start())
 	time.Sleep(time.Second)
 	t.Log(l.Stop())
+	t.Log(l.Stop())
 }
\ No newline at end of file
-- 
2.39.2