To: vim-dev@vim.org
Subject: Patch 7.2.325
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------

Patch 7.2.325
Problem:    A stray "w" in the startup vimrc file causes the edited file to be
	    replaced with an empty file. (Stone Kang).
Solution:   Do not write a buffer when it has never been loaded.
Files:	    src/fileio.c


*** ../vim-7.2.324/src/fileio.c	2009-12-02 13:32:10.000000000 +0100
--- src/fileio.c	2009-12-31 14:08:31.000000000 +0100
***************
*** 2981,2986 ****
--- 2981,2993 ----
  
      if (fname == NULL || *fname == NUL)	/* safety check */
  	return FAIL;
+     if (buf->b_ml.ml_mfp == NULL)
+     {
+ 	/* This can happen during startup when there is a stray "w" in the
+ 	 * vimrc file. */
+ 	EMSG(_(e_emptybuf));
+ 	return FAIL;
+     }
  
      /*
       * Disallow writing from .exrc and .vimrc in current directory for
*** ../vim-7.2.324/src/version.c	2009-12-31 13:18:05.000000000 +0100
--- src/version.c	2009-12-31 14:52:29.000000000 +0100
***************
*** 683,684 ****
--- 683,686 ----
  {   /* Add new patch number below this line */
+ /**/
+     325,
  /**/

-- 
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 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
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