check return value stop seg. Bug #967

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@2328 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 4 insertions, 0 deletions

diff --git a/channels/h323/ast_h323.cpp b/channels/h323/ast_h323.cpp
index 2a0f14492..44e816350 100755
--- a/channels/h323/ast_h323.cpp
+++ b/channels/h323/ast_h323.cpp
@@ -673,6 +673,10 @@ H323Channel * MyH323Connection::CreateRealTimeLogicalChannel(const H323Capabilit
 	/* Determine the Local (A side) IP Address and port */
 	info = on_create_connection(GetCallReference()); 
 
+	if (!info) {
+		return NULL;
+	}
+
         GetControlChannel().GetLocalAddress().GetIpAndPort(externalIpAddress, port);
 	externalPort = info->port;