From 29e524f0b8349a337008a3df97a9f2bb530c42e6 Mon Sep 17 00:00:00 2001
From: qwell <qwell@f38db490-d61c-443f-a65b-d21fe96a405b>
Date: Thu, 1 Nov 2007 16:22:09 +0000
Subject: [PATCH] Merged revisions 88078 via svnmerge from
 https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r88078 | qwell | 2007-11-01 11:21:22 -0500 (Thu, 01 Nov 2007) | 4 lines

Make sure we set the poll fds to NULL after free()ing it.

Part of issue 11017, patch by tzafrir.

........


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@88079 f38db490-d61c-443f-a65b-d21fe96a405b
---
 channels/chan_zap.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/channels/chan_zap.c b/channels/chan_zap.c
index bdc786fa9..556cdc59c 100644
--- a/channels/chan_zap.c
+++ b/channels/chan_zap.c
@@ -7163,8 +7163,10 @@ static void *do_monitor(void *data)
 		/* Lock the interface list */
 		ast_mutex_lock(&iflock);
 		if (!pfds || (lastalloc != ifcount)) {
-			if (pfds)
+			if (pfds) {
 				ast_free(pfds);
+				pfds = NULL;
+			}
 			if (ifcount) {
 				if (!(pfds = ast_calloc(1, ifcount * sizeof(*pfds)))) {
 					ast_mutex_unlock(&iflock);