From: Anthony Minessale <anthm@freeswitch.org>
Date: Thu, 13 May 2010 15:22:21 +0000 (-0500)
Subject: add failure condition
X-Git-Tag: git2svn-syncpoint-master~66
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eec3b757d4bdabbb63c3aaa464f4f0ecea6cb223;p=thirdparty%2Ffreeswitch.git

add failure condition
---

diff --git a/src/switch_core_io.c b/src/switch_core_io.c
index b20ea0c4e9..7d75835ac8 100644
--- a/src/switch_core_io.c
+++ b/src/switch_core_io.c
@@ -639,6 +639,8 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_sess
 	switch_mutex_lock(session->write_codec->mutex);
 	switch_mutex_lock(frame->codec->mutex);
 
+	if (!frame->codec->implementation || !session->write_codec->implementation) goto error;
+	
 	if ((session->write_codec && frame->codec && session->write_codec->implementation != frame->codec->implementation)) {
 		if (session->write_impl.codec_id == frame->codec->implementation->codec_id ||
 			session->write_impl.microseconds_per_packet != frame->codec->implementation->microseconds_per_packet) {