[rfa] symfile.c - fix apparently uninitialized my_cleanups

[Michael Snyder]

Andrew Cagney wrote:
> 
> Hello,
> 
> I think the attatched is correct.  ``my_cleanups'' was always
> initialized but in a somewhat obscure way.  It probably illustrates a
> better way of doing cleanups for a function - unconditionally setup the
> cleanup at the very start.

Andrew, 

There's nothing wrong with your change, but since there are 
probably hundreds of other functions that do things in the 
same way this one did, do you want to say any more about 
why it's bad?  Maybe motivate a few people to follow your
example?

Michael


> 
> Ok?
>         Andrew
> 
>     ---------------------------------------------------------------
> Mon Nov 27 18:19:46 2000  Andrew Cagney  <cagney@b1.cygnus.com>
> 
>         * symfile.c (add_symbol_file_command): Always initialize
>         my_cleanup using a NULL cleanup.
> 
> Index: symfile.c
> ===================================================================
> RCS file: /cvs/src/src/gdb/symfile.c,v
> retrieving revision 1.20
> diff -p -r1.20 symfile.c
> *** symfile.c   2000/10/27 15:02:42     1.20
> --- symfile.c   2000/11/27 07:22:03
> *************** add_symbol_file_command (char *args, int
> *** 1416,1422 ****
>     } sect_opts[SECT_OFF_MAX];
> 
>     struct section_addr_info section_addrs;
> !   struct cleanup *my_cleanups;
> 
>     dont_repeat ();
> 
> --- 1417,1423 ----
>     } sect_opts[SECT_OFF_MAX];
> 
>     struct section_addr_info section_addrs;
> !   struct cleanup *my_cleanups = make_cleanup (null_cleanup, NULL);
> 
>     dont_repeat ();
> 
> *************** add_symbol_file_command (char *args, int
> *** 1452,1458 ****
>         {
>           /* The first argument is the file name. */
>           filename = tilde_expand (arg);
> !         my_cleanups = make_cleanup (free, filename);
>         }
>         else
>         if (argcnt == 1)
> --- 1453,1459 ----
>         {
>           /* The first argument is the file name. */
>           filename = tilde_expand (arg);
> !         make_cleanup (free, filename);
>         }
>         else
>         if (argcnt == 1)