From fb254fb2fc89f89142a2c991d9b09364ca1dac02 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Mon, 16 Feb 2009 04:53:01 +0000
Subject: [PATCH] Fix crash when NullAutomation is created (which shouldn't be
 happening, but hey...).

git-svn-id: svn://localhost/ardour2/branches/3.0@4598 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 gtk2_ardour/audio_time_axis.cc | 4 +---
 gtk2_ardour/midi_time_axis.cc  | 5 +++++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/gtk2_ardour/audio_time_axis.cc b/gtk2_ardour/audio_time_axis.cc
index 1d66dda0b0..16a9ef6b2f 100644
--- a/gtk2_ardour/audio_time_axis.cc
+++ b/gtk2_ardour/audio_time_axis.cc
@@ -387,9 +387,7 @@ AudioTimeAxisView::ensure_pan_views (bool show)
 							    *this,
 							    false,
 							    parent_canvas,
-							    name)
-				
-				);
+							    name));
 			
 			add_automation_child (*p, pan_track, show);
 		}
diff --git a/gtk2_ardour/midi_time_axis.cc b/gtk2_ardour/midi_time_axis.cc
index 7d78ae4365..2c852fb211 100644
--- a/gtk2_ardour/midi_time_axis.cc
+++ b/gtk2_ardour/midi_time_axis.cc
@@ -494,6 +494,11 @@ MidiTimeAxisView::create_automation_child (const Evoral::Parameter& param, bool
 	/* These controllers are region "automation", so we do not create
 	 * an AutomationList/Line for the track */
 
+	if (param.type() == NullAutomation) {
+		cerr << "WARNING: Attempt to create NullAutomation child, ignoring" << endl;
+		return;
+	}
+
 	AutomationTracks::iterator existing = _automation_tracks.find(param);
 	if (existing != _automation_tracks.end())
 		return;