From 11479e53bdb2c3704e4b3a66537ed37eba385075 Mon Sep 17 00:00:00 2001
From: Bernard Xiong <bernard.xiong@gmail.com>
Date: Sat, 1 Sep 2018 13:32:03 +0800
Subject: [PATCH] [lwIP] Fix the wait queue initialization issue.

---
 components/net/lwip-2.0.2/src/api/sockets.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/components/net/lwip-2.0.2/src/api/sockets.c b/components/net/lwip-2.0.2/src/api/sockets.c
index 1d0fb0dd19..dc2477b611 100644
--- a/components/net/lwip-2.0.2/src/api/sockets.c
+++ b/components/net/lwip-2.0.2/src/api/sockets.c
@@ -410,8 +410,6 @@ lwip_tryget_socket(int s)
 	return tryget_socket(s);
 }
 
-
-
 /**
  * Allocate a new socket for a given netconn.
  *
@@ -443,6 +441,9 @@ alloc_socket(struct netconn *newconn, int accepted)
       sockets[i].sendevent  = (NETCONNTYPE_GROUP(newconn->type) == NETCONN_TCP ? (accepted != 0) : 1);
       sockets[i].errevent   = 0;
       sockets[i].err        = 0;
+#ifdef SAL_USING_POSIX
+      rt_wqueue_init(&sockets[i].wait_head);
+#endif
       return i + LWIP_SOCKET_OFFSET;
     }
     SYS_ARCH_UNPROTECT(lev);
-- 
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