From 5ca703e38b1616195672f0427e145d45fd2c8d83 Mon Sep 17 00:00:00 2001
From: Kerry Jiang <kerry-jiang@hotmail.com>
Date: Fri, 27 Dec 2024 13:27:02 -0800
Subject: [PATCH] avoid one unhandled exception when listener socket quit
 without intended closure

---
 src/SuperSocket.Server/Connection/TcpConnectionListener.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/SuperSocket.Server/Connection/TcpConnectionListener.cs b/src/SuperSocket.Server/Connection/TcpConnectionListener.cs
index 709fe1eba..f9ea802a6 100644
--- a/src/SuperSocket.Server/Connection/TcpConnectionListener.cs
+++ b/src/SuperSocket.Server/Connection/TcpConnectionListener.cs
@@ -92,7 +92,7 @@ private async Task KeepAccept(Socket listenSocket)
                 }
             }
 
-            _stopTaskCompletionSource.TrySetResult(true);
+            _stopTaskCompletionSource?.TrySetResult(true);
         }
 
         public event NewConnectionAcceptHandler NewConnectionAccept;