From 45c5ec307f49526983ddda249457a9582992a5b5 Mon Sep 17 00:00:00 2001
From: windowsair <msdn_02@sina.com>
Date: Thu, 7 Oct 2021 22:28:29 +0800
Subject: [PATCH] fix(usbip): Fix null pointer dereference

---
 main/tcp_server.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/main/tcp_server.c b/main/tcp_server.c
index 2967f08..620ae9f 100644
--- a/main/tcp_server.c
+++ b/main/tcp_server.c
@@ -170,7 +170,8 @@ void tcp_server_task(void *pvParameters)
 
                 // Restart DAP Handle
                 kRestartDAPHandle = 1;
-                xTaskNotifyGive(kDAPTaskHandle);
+                if (kDAPTaskHandle)
+                    xTaskNotifyGive(kDAPTaskHandle);
 
                 //shutdown(listen_sock, 0);
                 //close(listen_sock);