From b422393bbcc063e7f2cde614ce36b770b15e8273 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marco=20Trevisan=20=28Trevi=C3=B1o=29?= <mail@3v1n0.net>
Date: Wed, 1 May 2024 03:14:45 +0200
Subject: [PATCH] x11/window: Add type-check guard to
 meta_window_x11_get_group()

Since this is still public API we want to ensure that we don't cast
it directly without having checked its type

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3727>
---
 src/x11/window-x11.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/x11/window-x11.c b/src/x11/window-x11.c
index 536ccf447..b87c5072a 100644
--- a/src/x11/window-x11.c
+++ b/src/x11/window-x11.c
@@ -4536,6 +4536,8 @@ meta_window_x11_get_group (MetaWindow *window)
   MetaWindowX11 *window_x11;
   MetaWindowX11Private *priv;
 
+  g_return_val_if_fail (META_IS_WINDOW_X11 (window), NULL);
+
   if (window->unmanaging)
     return NULL;