Do not get muddled and crash if focusing a pane that is exiting,

reported by Saul Nogueras in GitHub issue 3776.

diff --git a/usr.bin/tmux/window.c b/usr.bin/tmux/window.c
index 3d4361a..e9a9a1e 100644 (file)
--- a/usr.bin/tmux/window.c
+++ b/usr.bin/tmux/window.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: window.c,v 1.289 2024/03/21 11:30:42 nicm Exp $ */
+/* $OpenBSD: window.c,v 1.290 2024/04/10 07:15:21 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -474,7 +474,7 @@ window_pane_update_focus(struct window_pane *wp)
        struct client   *c;
        int              focused = 0;
 
-       if (wp != NULL) {
+       if (wp != NULL && (~wp->flags & PANE_EXITED)) {
                if (wp != wp->window->active)
                        focused = 0;
                else {