From: Richard M. Stallman <rms@gnu.org>
Date: Tue, 16 Nov 1993 07:09:11 +0000 (+0000)
Subject: (Foverlay_put): Don't call redisplay_region if overlay has no buffer.
X-Git-Tag: emacs-19.34~10808
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=25d16451c8bdcbfadc904221b11579c281dc3c97;p=emacs.git

(Foverlay_put): Don't call redisplay_region if overlay has no buffer.
---

diff --git a/src/buffer.c b/src/buffer.c
index 7095498c2e8..d4300e3b5ed 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -1865,9 +1865,11 @@ DEFUN ("overlay-put", Foverlay_put, Soverlay_put, 3, 3, 0,
 
   CHECK_OVERLAY (overlay, 0);
 
-  redisplay_region (XMARKER (OVERLAY_START (overlay))->buffer,
-		    marker_position (OVERLAY_START (overlay)),
-		    marker_position (OVERLAY_END   (overlay)));
+  tail = Fmarker_buffer (OVERLAY_START (overlay));
+  if (! NILP (tail))
+    redisplay_region (XMARKER (OVERLAY_START (overlay))->buffer,
+		      marker_position (OVERLAY_START (overlay)),
+		      marker_position (OVERLAY_END   (overlay)));
   
   plist = Fcdr_safe (XCONS (overlay)->cdr);