From: Robert Pluim <rpluim@gmail.com>
Date: Mon, 6 Jan 2025 15:38:07 +0000 (+0100)
Subject: Protect Vframe_list updating from interruptions
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=c4d76ea8d4c13ba32f0a62ead53bc92c140685b4;p=emacs.git

Protect Vframe_list updating from interruptions

* src/frame.c (delete_frame): When deleting the frame from
Vframe_list, block input, since input can arrive whilst we're
running lisp  (Bug#74902).

(cherry picked from commit 8e9ad92a140e89c3e29dd7ab148534289e7769db)
---

diff --git a/src/frame.c b/src/frame.c
index cd14e411678..1e371351197 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -2497,7 +2497,9 @@ delete_frame (Lisp_Object frame, Lisp_Object force)
   delete_all_child_windows (f->root_window);
   fset_root_window (f, Qnil);
 
+  block_input ();
   Vframe_list = Fdelq (frame, Vframe_list);
+  unblock_input ();
   SET_FRAME_VISIBLE (f, false);
 
   /* Allow the vector of menu bar contents to be freed in the next