From: Eli Zaretskii <eliz@gnu.org>
Date: Sat, 25 Jul 2020 07:15:07 +0000 (+0300)
Subject: Fix display of man pages after killing the 'man' process
X-Git-Tag: emacs-28.0.90~6939
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=eaad6eac0018c2f3b35af7c522f9d02618918a3a;p=emacs.git

Fix display of man pages after killing the 'man' process

* lisp/man.el (Man-bgproc-filter, Man-bgproc-sentinel): Use
'buffer-live-p' instead of just testing the buffer's name.
(Bug#42160)
---

diff --git a/lisp/man.el b/lisp/man.el
index 8a36f3ac25d..3121334c6f9 100644
--- a/lisp/man.el
+++ b/lisp/man.el
@@ -1396,7 +1396,7 @@ synchronously, PROCESS is the name of the buffer where the manpage
 command is run.  Second argument STRING is the entire string of output."
   (save-excursion
     (let ((Man-buffer (process-buffer process)))
-      (if (null (buffer-name Man-buffer)) ;; deleted buffer
+      (if (not (buffer-live-p Man-buffer)) ;; deleted buffer
 	  (set-process-buffer process nil)
 
 	(with-current-buffer Man-buffer
@@ -1430,7 +1430,7 @@ manpage command."
 	(delete-buff nil)
 	message)
 
-    (if (null (buffer-name Man-buffer)) ;; deleted buffer
+    (if (not (buffer-live-p Man-buffer)) ;; deleted buffer
 	(or (stringp process)
 	    (set-process-buffer process nil))