Do not count client (and crash) if no window.

diff --git a/usr.bin/tmux/resize.c b/usr.bin/tmux/resize.c
index 5941b98..10ce11d 100644 (file)
--- a/usr.bin/tmux/resize.c
+++ b/usr.bin/tmux/resize.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: resize.c,v 1.43 2021/06/10 07:24:45 nicm Exp $ */
+/* $OpenBSD: resize.c,v 1.44 2021/06/10 07:29:45 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -136,7 +136,7 @@ clients_calculate_size(int type, int current, struct client *c,
         * For latest, count the number of clients with this window. We only
         * care if there is more than one.
         */
-       if (type == WINDOW_SIZE_LATEST)
+       if (type == WINDOW_SIZE_LATEST && w != NULL)
                n = clients_with_window(w);
 
        /* Loop over the clients and work out the size. */