Make sure we get the cause code in the REL

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@65640 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_zap.c

@@ -8782,9 +8782,10 @@ static void *ss7_linkset(void *data)
 				}
 				p = linkset->pvts[chanpos];
 				ast_mutex_lock(&p->lock);
-				if (p->owner)
+				if (p->owner) {
+					p->owner->hangupcause = e->rel.cause;
 					ast_queue_hangup(p->owner);
-				else
+				} else
 					ast_log(LOG_WARNING, "REL on channel (CIC %d) without owner!\n", p->cic);
 
 				isup_rlc(ss7, e->rel.call);