(newline): Call barf-if-buffer-read-only.

diff --git a/lisp/simple.el b/lisp/simple.el
index 68a5005e54aa427b278e849943f78eca9a9f92a5..9c362cf8e41d5d4ecb80a96877265397371a83e7 100644 (file)
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -31,6 +31,7 @@ The newline is marked with the text-property `hard'.
 With arg, insert that many newlines.
 In Auto Fill mode, if no numeric arg, break the preceding line if it's long."
   (interactive "*P")
+  (barf-if-buffer-read-only)
   ;; Inserting a newline at the end of a line produces better redisplay in
   ;; try_window_id than inserting at the beginning of a line, and the textual
   ;; result is the same.  So, if we're at beginning of line, pretend to be at