From caefb971a4dafd695997264c115833bf2baa2ae5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20Villac=C3=ADs=20Lasso?= <a_villacis@palosanto.com>
Date: Tue, 16 Feb 2021 18:27:43 -0500
Subject: [PATCH] Scrub write mutex ptr immediately after destroying it

In order to detect possible memory corruption.
---
 src/AsyncTCP.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/AsyncTCP.cpp b/src/AsyncTCP.cpp
index 667daa7..5f9bae0 100644
--- a/src/AsyncTCP.cpp
+++ b/src/AsyncTCP.cpp
@@ -287,6 +287,7 @@ AsyncClient::~AsyncClient()
 {
     if (_socket != -1) _close();
     vSemaphoreDelete(_write_mutex);
+    _write_mutex = NULL;
 }
 
 void AsyncClient::setRxTimeout(uint32_t timeout){