Fix crash encountered by the testsuite.

Running testsuite tests locally produced no errors, but when
run using the continuous integration framework, crashes occurred.

The crashes occurred due to a refcounting error that had been fixed
for a similar situation.
........

Merged revisions 420758 from http://svn.asterisk.org/svn/asterisk/branches/13

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@420759 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/res/res_pjsip_pubsub.c b/res/res_pjsip_pubsub.c
index f3504ae44b2110bd3ef8af488133a2f4277ea30b..c9e8834c622ca963142b9f94c7d0acb0a2726652 100644 (file)
--- a/res/res_pjsip_pubsub.c
+++ b/res/res_pjsip_pubsub.c
@@ -2032,7 +2032,10 @@ int ast_sip_subscription_notify(struct ast_sip_subscription *sub, void *notify_d
        if (sub->tree->notification_batch_interval) {
                return schedule_notification(sub->tree);
        } else {
+               /* See the note in pubsub_on_rx_refresh() for why sub->tree is refbumped here */
+               ao2_ref(sub->tree, +1);
                return send_notify(sub->tree, 0);
+               ao2_ref(sub->tree, -1);
        }
 }