From: Joshua Colp <jcolp@digium.com>
Date: Tue, 10 Jun 2008 13:34:27 +0000 (+0000)
Subject: If we are destroying a dialog only set the MWI dialog pointer on the related peer... 
X-Git-Tag: 1.4.22-rc1~228
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fb87cc02f9af550c7ae1ef28e1894bdb03075205;p=thirdparty%2Fasterisk.git

If we are destroying a dialog only set the MWI dialog pointer on the related peer to NULL if it is the dialog currently being destroyed.
(closes issue #12828)
Reported by: ramonpeek


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@121495 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 2838110cee..912fe9a5ec 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -3115,7 +3115,9 @@ static int __sip_destroy(struct sip_pvt *p, int lockowner)
 
 	/* Remove link from peer to subscription of MWI */
 	if (p->relatedpeer) {
-		p->relatedpeer->mwipvt = NULL;
+		if (p->relatedpeer->mwipvt == p) {
+			p->relatedpeer->mwipvt = NULL;
+		}
 		ASTOBJ_UNREF(p->relatedpeer, sip_destroy_peer);
 	}