From 77a2e56374a7891bdd572f2ffa51f700c6fb809f Mon Sep 17 00:00:00 2001 From: Lin Sun Date: Fri, 5 Apr 2024 06:58:07 +0000 Subject: [PATCH] * lisp/master.el (master-says): check nil parameter --- lisp/master.el | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lisp/master.el b/lisp/master.el index 0caf4d7963..9151ca212d 100644 --- a/lisp/master.el +++ b/lisp/master.el @@ -136,6 +136,8 @@ master-says-recenter (defun master-says (&optional command arg) "Display slave buffer and execute COMMAND with ARG in its window." (interactive) + (unless master-of + (error "Current buffer is not a master of any other buffer")) (if (null (buffer-live-p (get-buffer master-of))) (error "Slave buffer has disappeared") (let ((window (selected-window))) -- 2.20.5