Re: [PATCH] soc: renesas: rz-sysc: Suppress binding attributes

[Geert Uytterhoeven]

On Sat, 15 Feb 2025 at 14:18, Claudiu <claudiu.beznea@xxxxxxxxx> wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
>
> The matching data for the rz-sysc driver is marked with __initconst, which
> means it is discarded after initialization. Because of this, attempting to
> unbind/bind the driver through sysfs after system boot can lead to "Unable
> to handle kernel paging request at virtual address" errors due to accessing
> freed memory.
>
> Since the System Controller (SYSC) is an essential block for Renesas SoCs,
> suppress binding attributes to prevent them being exposed in sysfs,
> avoiding potential issues.
>
> Fixes: 1660e5ea6a3e ("soc: renesas: Add SYSC driver for Renesas RZ family")
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>

Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
i.e. will queue in renesas-devel for v6.15.

>  drivers/soc/renesas/rz-sysc.c | 1 +

Looks like there are more opportunities for similar changes?

Gr{oetje,eeting}s,

                        Geert

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

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds