From 52eeda5e47e8a081cd2f94b78536c6376592a526 Mon Sep 17 00:00:00 2001
From: Guus Sliepen <guus@meshlink.io>
Date: Thu, 30 Oct 2014 14:55:07 +0100
Subject: [PATCH] Only call the poll callback when state is ESTABLISHED or
 CLOSE_WAIT.

---
 utcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utcp.c b/utcp.c
index f48460d..3206cd7 100644
--- a/utcp.c
+++ b/utcp.c
@@ -1055,7 +1055,7 @@ int utcp_timeout(struct utcp *utcp) {
 			retransmit(c);
 		}
 
-		if(c->poll && c->sndbufsize < c->maxsndbufsize / 2)
+		if(c->poll && c->sndbufsize < c->maxsndbufsize / 2 && (c->state == ESTABLISHED || c->state == CLOSE_WAIT))
 			c->poll(c, c->maxsndbufsize - c->sndbufsize);
 
 		if(timerisset(&c->conn_timeout) && timercmp(&c->conn_timeout, &next, <))
-- 
2.39.5