From c222a6a45182f3db53b23aa28d38a68e5c9083ec Mon Sep 17 00:00:00 2001
From: shaojinchun <shaojinchun@rt-thread.com>
Date: Mon, 1 Mar 2021 21:52:15 +0800
Subject: [PATCH] =?UTF-8?q?dfs=5Fnet=5Fclose=E5=A2=9E=E5=8A=A0=E5=A4=9A?=
 =?UTF-8?q?=E4=BB=BB=E5=8A=A1=E6=94=AF=E6=8C=81?=
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---
 components/net/sal_socket/dfs_net/dfs_net.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/components/net/sal_socket/dfs_net/dfs_net.c b/components/net/sal_socket/dfs_net/dfs_net.c
index 0d88674105..f8c4b4a91f 100644
--- a/components/net/sal_socket/dfs_net/dfs_net.c
+++ b/components/net/sal_socket/dfs_net/dfs_net.c
@@ -55,9 +55,15 @@ static int dfs_net_write(struct dfs_fd *file, const void *buf, size_t count)
 
 static int dfs_net_close(struct dfs_fd* file)
 {
-    int socket = (int) file->fnode->data;
-
-    return sal_closesocket(socket);
+    int socket;
+    int ret = 0;
+
+    if (file->fnode->ref_count == 1)
+    {
+        socket = (int) file->fnode->data;
+        ret = sal_closesocket(socket);
+    }
+    return ret;
 }
 
 static int dfs_net_poll(struct dfs_fd *file, struct rt_pollreq *req)
-- 
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