From 64a9e5f0011d0f6dcfccfaa1ed9e3d65eaf80bdd Mon Sep 17 00:00:00 2001
From: Matthew Jordan <mjordan@digium.com>
Date: Sun, 21 Sep 2014 01:16:05 +0000
Subject: [PATCH] main/channel: Unlock channel in off-nominal path

In r423414 (13) / r423415 (trunk), an API call that determines if a format
capability structure is empty was added. This returns true if the format
capability structure is completely empty or "none". A check for this was added
in channel.c's set_format call. Unfortunately, when this check was true, it
returned from the function while still holding the channel lock. This caused
the CDR unit tests - which have a tendency to create channels with no formats -
to deadlock. Whoops.

This patch unlocks the channel on the off-nominal path.
........

Merged revisions 423641 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@423642 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 main/channel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/main/channel.c b/main/channel.c
index 477bc815b2..9100f2671d 100644
--- a/main/channel.c
+++ b/main/channel.c
@@ -5328,6 +5328,7 @@ static int set_format(struct ast_channel *chan, struct ast_format_cap *cap_set,
 
 	cap_native = ast_channel_nativeformats(chan);
 	if (ast_format_cap_empty(cap_native)) {
+		ast_channel_unlock(chan);
 		ast_log(LOG_ERROR, "Unable to set format because channel %s supports no formats\n",
 				ast_channel_name(chan));
 		return -1;
-- 
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