From f2f9d92131c0b0d82d1d0dd24cc7ec084ebce443 Mon Sep 17 00:00:00 2001
From: xiehang <xiehang@espressif.com>
Date: Wed, 6 Mar 2019 21:07:22 +0800
Subject: [PATCH] fix the bug in auto Ip memory leak

---
 components/lwip/core/ipv4/autoip.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/components/lwip/core/ipv4/autoip.c b/components/lwip/core/ipv4/autoip.c
index 92f5e22cad..e18b8e23c0 100644
--- a/components/lwip/core/ipv4/autoip.c
+++ b/components/lwip/core/ipv4/autoip.c
@@ -384,6 +384,7 @@ autoip_stop(struct netif *netif)
       netif_set_addr(netif, IP4_ADDR_ANY, IP4_ADDR_ANY, IP4_ADDR_ANY);
     }
     mem_free(netif->autoip);
+    netif->autoip = NULL;
   }
   return ERR_OK;
 }