From d569a22c73fc9a5a5ca99d328e7a24d2391413a3 Mon Sep 17 00:00:00 2001
From: Joel Cunningham <joel.cunningham@me.com>
Date: Tue, 2 Jan 2018 13:44:34 -0600
Subject: [PATCH] tcpip: ensure core is locked for init done function

This ensures the core is locked when executing the init done function
passed to tcpip_init

The could manifest as a synchronization issue during early init if
another thread was in the LwIP context at the same time
---
 src/api/tcpip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/api/tcpip.c b/src/api/tcpip.c
index 608ba607..c192a0fb 100644
--- a/src/api/tcpip.c
+++ b/src/api/tcpip.c
@@ -93,11 +93,11 @@ tcpip_thread(void *arg)
 
   LWIP_MARK_TCPIP_THREAD();
 
+  LOCK_TCPIP_CORE();
   if (tcpip_init_done != NULL) {
     tcpip_init_done(tcpip_init_done_arg);
   }
 
-  LOCK_TCPIP_CORE();
   while (1) {                          /* MAIN Loop */
     LWIP_TCPIP_THREAD_ALIVE();
     /* wait for a message, timeouts are processed while waiting */