Re: [patch 2/3] vdso: improve print_fatal_signals support by addingmemory maps

From: Andrew Morton
Date: Sun Jun 18 2006 - 01:57:25 EST


On Sat, 17 Jun 2006 21:58:18 -0700
"Randy.Dunlap" <rdunlap@xxxxxxxxxxxx> wrote:

> On Sat, 17 Jun 2006 16:14:52 +0200 Simon Raffeiner wrote:
>
> > When compiling 2.6.17-rc6-mm2 (which contains this patch) my gcc 4.0.3 (Ubuntu
> > 4.0.3-1ubuntu5) complains about "int len;" being used uninitialized in
> > print_vma(). AFAICS len is not initialized and then passed to
> > pad_len_spaces(int len), which uses it for some calculations.
> >
> > I also noticed that similar code is used in fs/proc/task_mmu.c, where
> > show_map_internal() passes an uninitialised int len; to pad_len_spaces(struct
> > seq_file *m, int len).
>
> Ack both of those. And both of them pass &len as a parameter to
> printk/seq_printf where it looks as though they want just <len>
> (after it has been initialized).
>

printk("%n", &len) will initialise `len'. gcc is being wrong again.
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