From 38e72b27166d585cf53d0450bf4dbe6c68250551 Mon Sep 17 00:00:00 2001
From: Pedro Algarvio <palgarvio@vmware.com>
Date: Mon, 6 Nov 2023 12:12:46 +0000
Subject: [PATCH] Need to check for both `_closing` and `_closed`

Signed-off-by: Pedro Algarvio <palgarvio@vmware.com>
---
 salt/transport/tcp.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/salt/transport/tcp.py b/salt/transport/tcp.py
index 3af3fbedaf2..1c5db5614c6 100644
--- a/salt/transport/tcp.py
+++ b/salt/transport/tcp.py
@@ -773,7 +773,7 @@ class MessageClient:
 
     # TODO: timeout inflight sessions
     def close(self):
-        if self._closing:
+        if self._closing or self._closed:
             return
         self._closing = True
         self.io_loop.add_timeout(1, self.check_close)