From ff8e14d78278baeeea20b274feffc02b000a8fee Mon Sep 17 00:00:00 2001
From: Jonathan Rose <jrose@digium.com>
Date: Tue, 24 Jul 2012 21:08:27 +0000
Subject: [PATCH] Don't attempt free of NULL ptr in pbx.c handle_presencechange

(closes issue AST-921)
Reported by: Guenther Kelleter
Patches:
    nullptr.patch uploaded by Guenther Kelleter (license 6372)



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/10-digiumphones@370465 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 main/pbx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main/pbx.c b/main/pbx.c
index 85a22aab47..026cafe1cd 100644
--- a/main/pbx.c
+++ b/main/pbx.c
@@ -4805,7 +4805,7 @@ static int handle_presencechange(void *datap)
 	res = 0;
 
 presencechange_cleanup:
-	ast_free(hint_app);
+	ast_ref(hint_app, -1);
 	ao2_ref(pc, -1);
 
 	return res;
-- 
2.47.2