Re: [PATCH] hwpoison: fix uninitialized warning

[Wu Fengguang <fengguang.wu@intel.com>]

On Wed, Sep 16, 2009 at 05:19:07AM +0800, Hugh Dickins wrote:
> Fix mmotm build warning, presumably also in linux-next:
> mm/memory.c: In function `do_swap_page':
> mm/memory.c:2498: warning: `pte' may be used uninitialized in this function

Thanks for the fix!

Reviewed-by: Wu Fengguang <fengguang.wu@intel.com>

> Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
> ---
> I've only noticed this warning on one machine, the powerpc: certainly it
> needs CONFIG_MIGRATION or CONFIG_MEMORY_FAILURE to see it, but I thought
> I had one of those set on other machines - just musing in case it's being
> masked elsewhere by some other bug...
> 
>  mm/memory.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- mmotm/mm/memory.c	2009-09-14 16:34:37.000000000 +0100
> +++ linux/mm/memory.c	2009-09-15 22:00:48.000000000 +0100
> @@ -2495,7 +2495,7 @@ static int do_swap_page(struct mm_struct
>  		} else if (is_hwpoison_entry(entry)) {
>  			ret = VM_FAULT_HWPOISON;
>  		} else {
> -			print_bad_pte(vma, address, pte, NULL);
> +			print_bad_pte(vma, address, orig_pte, NULL);
>  			ret = VM_FAULT_OOM;
>  		}
>  		goto out;