From cb4b23dbf6c937340e8825769e4cc72fc52c8692 Mon Sep 17 00:00:00 2001
From: Michael Telatynski <7t3chguy@gmail.com>
Date: Thu, 2 Dec 2021 14:07:27 +0000
Subject: [PATCH] Fix CallPreview `room is null` (#7265)

---
 src/components/views/voip/CallPreview.tsx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/components/views/voip/CallPreview.tsx b/src/components/views/voip/CallPreview.tsx
index 1c667e42291..79a7d8c0e14 100644
--- a/src/components/views/voip/CallPreview.tsx
+++ b/src/components/views/voip/CallPreview.tsx
@@ -133,7 +133,9 @@ export default class CallPreview extends React.Component<IProps, IState> {
         dis.unregister(this.dispatcherRef);
         SettingsStore.unwatchSetting(this.settingsWatcherRef);
         const room = MatrixClientPeg.get().getRoom(this.state.roomId);
-        WidgetLayoutStore.instance.off(WidgetLayoutStore.emissionForRoom(room), this.updateCalls);
+        if (room) {
+            WidgetLayoutStore.instance.off(WidgetLayoutStore.emissionForRoom(room), this.updateCalls);
+        }
     }
 
     private onRoomViewStoreUpdate = () => {