Fix crash in playlist selector for removed tracks.

Removing a Track does not delete its playlists and one can keep
Playlists after Cleanup. Don't crash if a the track that the playlist
originally belonged to does no longer exist.

diff --git a/gtk2_ardour/playlist_selector.cc b/gtk2_ardour/playlist_selector.cc
index 11d5d3a882fb8800b0e109c60ca43a50b16f508d..e58b69a818e22bb651be2221eb634c68ecd36446 100644 (file)
--- a/gtk2_ardour/playlist_selector.cc
+++ b/gtk2_ardour/playlist_selector.cc
@@ -123,7 +123,7 @@ PlaylistSelector::show_for (RouteUI* ruix)
 
                string nodename;
 
-               if (tr->name().empty()) {
+               if (!tr || tr->name().empty()) {
                        nodename = _("unassigned");
                } else {
                        nodename = tr->name().c_str();