From 61bb8a05d2fc2a3a70b75a75151e2d8d74cb08af Mon Sep 17 00:00:00 2001
From: HubretXie <xiexianbinwin@outlook.com>
Date: Thu, 1 Nov 2018 18:43:04 +0800
Subject: [PATCH] Update at_socket.c
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at socket 接收数据正常时清除错误标识
---
 components/net/at/at_socket/at_socket.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/net/at/at_socket/at_socket.c b/components/net/at/at_socket/at_socket.c
index 6357caa66e..01646f0d89 100644
--- a/components/net/at/at_socket/at_socket.c
+++ b/components/net/at/at_socket/at_socket.c
@@ -700,7 +700,7 @@ __exit:
     {
         result = recv_len;
         at_do_event_changes(sock, AT_EVENT_RECV, RT_FALSE);
-
+        errno = 0;
         if (!rt_slist_isempty(&sock->recvpkt_list))
         {
             at_do_event_changes(sock, AT_EVENT_RECV, RT_TRUE);