From 67ae8c8eb921d0e7176e809cdbd23a5d1867ade2 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <carl@carlh.net>
Date: Fri, 19 Aug 2011 14:45:08 +0000
Subject: Hopefully fix crash with empty IO matrix bundles (#4270).

git-svn-id: svn://localhost/ardour2/branches/3.0@10009 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 gtk2_ardour/bundle_manager.cc | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'gtk2_ardour/bundle_manager.cc')

diff --git a/gtk2_ardour/bundle_manager.cc b/gtk2_ardour/bundle_manager.cc
index 2e85b6a030..6367eb6560 100644
--- a/gtk2_ardour/bundle_manager.cc
+++ b/gtk2_ardour/bundle_manager.cc
@@ -82,6 +82,10 @@ BundleEditorMatrix::set_state (BundleChannel c[2], bool s)
 PortMatrixNode::State
 BundleEditorMatrix::get_state (BundleChannel c[2]) const
 {
+	if (c[0].bundle->nchannels() == ChanCount::ZERO || c[1].bundle->nchannels() == ChanCount::ZERO) {
+		return PortMatrixNode::NOT_ASSOCIATED;
+	}
+
 	Bundle::PortList const& pl = c[OTHER].bundle->channel_ports (c[OTHER].channel);
 	if (pl.empty ()) {
 		return PortMatrixNode::NOT_ASSOCIATED;
-- 
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