From 54b431f2a8b8d4e778ee94d2cfb10d55ccb72465 Mon Sep 17 00:00:00 2001
From: zhangyanjiao <zhangyanjiao@espressif.com>
Date: Thu, 27 Sep 2018 16:48:11 +0800
Subject: [PATCH] lwip: fix the crash when close socket

---
 components/lwip/lwip | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/lwip/lwip b/components/lwip/lwip
index 99d992cac..21a1fcb2a 160000
--- a/components/lwip/lwip
+++ b/components/lwip/lwip
@@ -1 +1 @@
-Subproject commit 99d992cac3e9d7614ba30ac75f6df35adb59f2e1
+Subproject commit 21a1fcb2aebaaae63d87dfeceaff03dc0bae6374