(insert-buffer): Before reading arg, barf if read-only.

1 files changed, 2 insertions, 1 deletions

diff --git a/lisp/simple.el b/lisp/simple.el
index 243b1eeb211..b3e756c780e 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -1057,7 +1057,8 @@ With argument, rotate that many kills forward (or backward, if negative)."
   "Insert after point the contents of BUFFER.
 Puts mark after the inserted text.
 BUFFER may be a buffer or a buffer name."
-  (interactive (list (read-buffer "Insert buffer: " (other-buffer) t)))
+  (interactive (list (progn (barf-if-buffer-read-only)
+                            (read-buffer "Insert buffer: " (other-buffer) t))))
   (or (bufferp buffer)
       (setq buffer (get-buffer buffer)))
   (let (start end newmark)