layout: Destroy panel barrier on shutdown

It was being leaked, which is detected on mutter shutdown.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3011
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2975>

diff --git a/js/ui/layout.js b/js/ui/layout.js
index 3ba9b9654f82ff3a0c35eaedebcc87fd2d4a631f..ff1626e249a0ef503391241d1daaade4a4b9715b 100644 (file)
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@@ -243,6 +243,7 @@ export const LayoutManager = GObject.registerClass({
             }
 
             this._destroyHotCorners();
+            this._destroyPanelBarrier();
             this.uiGroup.destroy();
         });
 
@@ -575,11 +576,15 @@ export const LayoutManager = GObject.registerClass({
         });
     }
 
-    _updatePanelBarrier() {
+    _destroyPanelBarrier() {
         if (this._rightPanelBarrier) {
             this._rightPanelBarrier.destroy();
             this._rightPanelBarrier = null;
         }
+    }
+
+    _updatePanelBarrier() {
+        this._destroyPanelBarrier();
 
         if (!this.primaryMonitor)
             return;