From: Richard Mudgett <rmudgett@digium.com>
Date: Tue, 17 Mar 2015 16:10:39 +0000 (+0000)
Subject: res_pjsip: Add reason comment.
X-Git-Tag: 13.3.0-rc1~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=522f0631863fb4ddf6337ecbdbf9b56c92eb757f;p=thirdparty%2Fasterisk.git

res_pjsip: Add reason comment.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@433005 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/res/res_pjsip.c b/res/res_pjsip.c
index 133546126e..20ac7a03e7 100644
--- a/res/res_pjsip.c
+++ b/res/res_pjsip.c
@@ -2975,6 +2975,12 @@ static int sync_task(void *data)
 
 	std->fail = std->task(std->task_data);
 
+	/*
+	 * Once we unlock std->lock after signaling, we cannot access
+	 * std again.  The thread waiting within
+	 * ast_sip_push_task_synchronous() is free to continue and
+	 * release its local variable (std).
+	 */
 	ast_mutex_lock(&std->lock);
 	std->complete = 1;
 	ast_cond_signal(&std->cond);