[asterisk-commits] mmichelson: branch 1.8 r368898 - /branches/1.8/funcs/func_volume.c

[SVN commits to the Asterisk project]

Author: mmichelson
Date: Wed Jun 13 15:59:01 2012
New Revision: 368898

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=368898
Log:
Fix a deadlock that occurs when func_volume is used on a local channel.

This was discovered by trying to perform a call forward to an extension
that makes use of func_volume. When the local channel is optimized away,
the datastore on the local;2 channel would have its audiohook destroyed
rather than detaching the audiohook from the channel and then destroying
it.

With this patch, func_volume's datastore destructor takes the proper
route of detaching the audiohook and then destroying it.

(closes issue ASTERISK-19611)
reported by Volker Sauer
Patches:
	ASTERISK-19611.patch uploaded by Mark Michelson (license #5049)


Modified:
    branches/1.8/funcs/func_volume.c

Modified: branches/1.8/funcs/func_volume.c
URL: http://svnview.digium.com/svn/asterisk/branches/1.8/funcs/func_volume.c?view=diff&rev=368898&r1=368897&r2=368898
==============================================================================
--- branches/1.8/funcs/func_volume.c (original)
+++ branches/1.8/funcs/func_volume.c Wed Jun 13 15:59:01 2012
@@ -90,6 +90,9 @@
 	struct volume_information *vi = data;
 
 	/* Destroy the audiohook, and destroy ourselves */
+	ast_audiohook_lock(&vi->audiohook);
+	ast_audiohook_detach(&vi->audiohook);
+	ast_audiohook_unlock(&vi->audiohook);
 	ast_audiohook_destroy(&vi->audiohook);
 	ast_free(vi);