Re: [PATCH] spi: sh-sci: Prevent NULL pointer dereference

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

On Thu, Mar 13, 2014 at 3:32 AM, Axel Lin <axel.lin@xxxxxxxxxx> wrote:
> If sp->info is NULL, we will hit NULL pointer dereference in probe() while
> setting bus_num and num_chipselect for master:
>
>         sp->bitbang.master->bus_num = sp->info->bus_num;
>         sp->bitbang.master->num_chipselect = sp->info->num_chipselect;
>
> Thus add NULL test for sp->info in probe() to prevent NULL pointer dereference.
>
> Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>

Reviewed-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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                                -- Linus Torvalds
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