Fix crash when closing session, recursive mon-section removal

diff --git a/gtk2_ardour/ardour_ui2.cc b/gtk2_ardour/ardour_ui2.cc
index 97d639fc1bb5990d995811b6aa4b6b867d79a89f..53bccb64bcc54ba553096b70d0b309ef46575657 100644 (file)
--- a/gtk2_ardour/ardour_ui2.cc
+++ b/gtk2_ardour/ardour_ui2.cc
@@ -821,6 +821,10 @@ ARDOUR_UI::update_title ()
 void
 ARDOUR_UI::toggle_use_monitor_section ()
 {
 void
 ARDOUR_UI::toggle_use_monitor_section ()
 {

+       if (!_session) {
+               return;
+       }
+

        RefPtr<Action> act = ActionManager::get_action (X_("Monitor"), "UseMonitorSection");
        assert (act);  RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
        assert (tact);
        RefPtr<Action> act = ActionManager::get_action (X_("Monitor"), "UseMonitorSection");
        assert (act);  RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
        assert (tact);