From d01b3177fd57aeab134d51d001cebe847cbfb1e2 Mon Sep 17 00:00:00 2001
From: goldsimon <goldsimon@gmx.de>
Date: Thu, 20 Jul 2017 21:18:40 +0200
Subject: [PATCH] Fix bug #51507 (Keep uses of SYS_ARCH_PROTECT/UNPROTECT in
 alloc_socket nested)

---
 src/api/sockets.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/api/sockets.c b/src/api/sockets.c
index bbbf3916..0bd60fea 100644
--- a/src/api/sockets.c
+++ b/src/api/sockets.c
@@ -461,6 +461,7 @@ alloc_socket(struct netconn *newconn, int accepted)
     if (!sockets[i].conn) {
 #if LWIP_NETCONN_FULLDUPLEX
       if (sockets[i].fd_used) {
+        SYS_ARCH_UNPROTECT(lev);
         continue;
       }
       sockets[i].fd_used    = 1;