From dc06c31a584aaad09276831e2300337b48eb8875 Mon Sep 17 00:00:00 2001
From: xueyunfei <xueyunfei@espressif.com>
Date: Wed, 2 Mar 2022 18:12:59 +0800
Subject: [PATCH] examples/common_components: iperf: fix closing of client
 socket in TCP server mode

Details of the problem : After iperf ended, the socket was not closed, resulting in the WIFI buffer not being released.
---
 examples/common_components/iperf/iperf.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/examples/common_components/iperf/iperf.c b/examples/common_components/iperf/iperf.c
index 40686c8537..dd55261fc5 100644
--- a/examples/common_components/iperf/iperf.c
+++ b/examples/common_components/iperf/iperf.c
@@ -241,6 +241,10 @@ static esp_err_t IRAM_ATTR iperf_run_tcp_server(void)
 
     socket_recv(client_socket, listen_addr, IPERF_TRANS_TYPE_TCP);
 exit:
+    if (client_socket != -1) {
+        close(client_socket);
+    }
+
     if (listen_socket != -1) {
         shutdown(listen_socket, 0);
         close(listen_socket);