Editor-mixer-strip: fix intermittent crash if we try to set up gui before set_route() is called (amends d2032d)

2020-04-04 12:03:45 -05:00
parent d2032df2e5
commit bb925ea151
1 changed files with 4 additions and 0 deletions
--- a/gtk2_ardour/route_ui.cc
+++ b/gtk2_ardour/route_ui.cc
@@ -2069,6 +2069,10 @@ RouteUI::setup_invert_buttons ()
 void
 RouteUI::update_polarity_display ()
 {
+	if (!_route) {
+		return;
+	}
+
 	uint32_t const N = _route->phase_control()->size();
 	if (N > _max_invert_buttons) {