From 5d872b26a180a8b1041fd8a0b909b7a6f639af66 Mon Sep 17 00:00:00 2001
From: fbernon <fbernon>
Date: Wed, 4 Jul 2007 21:13:25 +0000
Subject: [PATCH] sockets.c: Fix a possible problem because any new socket
 can't be created during the "close" (which can be "long" since fix for bug
 #20021).

---
 src/api/sockets.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/api/sockets.c b/src/api/sockets.c
index a6580a67..1421782d 100644
--- a/src/api/sockets.c
+++ b/src/api/sockets.c
@@ -282,16 +282,14 @@ lwip_close(int s)
 
   LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s));
 
-  /* We cannot allow multiple closes of the same socket. */
-  sys_sem_wait(socksem);
-
   sock = get_socket(s);
   if (!sock) {
-    sys_sem_signal(socksem);
     return -1;
   }
 
   netconn_delete(sock->conn);
+
+  sys_sem_wait(socksem);
   if (sock->lastdata) {
     netbuf_delete(sock->lastdata);
   }