From c3669a3104c17033a5be220c6ce2c3d8e929c8c4 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Fri, 30 Nov 2007 21:45:41 +0000
Subject: [PATCH] Fix UDP recvfrom timeout logic

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@417 42af7a65-404d-4744-a932-0658087f49c3
---
 net/recvfrom.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/recvfrom.c b/net/recvfrom.c
index af28635f78..43d3485afc 100644
--- a/net/recvfrom.c
+++ b/net/recvfrom.c
@@ -613,6 +613,10 @@ static void recvfrom_udpinterrupt(struct uip_driver_s *dev,
           /* Report a timeout error */
 
           pstate->rf_result = -EAGAIN;
+
+          /* Wake up the waiting thread */
+
+          sem_post(&pstate->rf_sem);
         }
 #endif /* CONFIG_NET_SOCKOPTS && !CONFIG_DISABLE_CLOCK */
     }