From: Lars Ingebrigtsen <larsi@gnus.org>
Date: Fri, 29 Jan 2021 06:04:43 +0000 (+0100)
Subject: Fix position in empty buffers in checkdoc-file-comments-engine
X-Git-Tag: emacs-28.0.90~4054
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=0b80935d37f4a089ee7e925e246622dcd4b1addb;p=emacs.git

Fix position in empty buffers in checkdoc-file-comments-engine

* lisp/emacs-lisp/checkdoc.el (checkdoc-file-comments-engine):
Don't give invalid positions on empty buffers (bug#39987).
---

diff --git a/lisp/emacs-lisp/checkdoc.el b/lisp/emacs-lisp/checkdoc.el
index 76638ec13b1..9722792a5a5 100644
--- a/lisp/emacs-lisp/checkdoc.el
+++ b/lisp/emacs-lisp/checkdoc.el
@@ -2362,7 +2362,9 @@ Code:, and others referenced in the style guide."
 		(checkdoc-create-error
 		 (format "The footer should be: (provide '%s)\\n;;; %s%s ends here"
 			 fn fn fe)
-		 (1- (point-max)) (point-max)))))
+                 ;; The buffer may be empty.
+		 (max (point-min) (1- (point-max)))
+                 (point-max)))))
 	err))
       ;; The below checks will not return errors if the user says NO