Re: [PATCH] regulator: core: fix debugfs creation regression

From: Geert Uytterhoeven
Date: Mon May 13 2024 - 08:17:59 EST


On Thu, May 9, 2024 at 3:34 PM Johan Hovold <johan+linaro@xxxxxxxxxx> wrote:
> regulator_get() may sometimes be called more than once for the same
> consumer device, something which before commit dbe954d8f163 ("regulator:
> core: Avoid debugfs: Directory ... already present! error") resulted in
> errors being logged.
>
> A couple of recent commits broke the handling of such cases so that
> attributes are now erroneously created in the debugfs root directory the
> second time a regulator is requested and the log is filled with errors
> like:
>
> debugfs: File 'uA_load' in directory '/' already present!
> debugfs: File 'min_uV' in directory '/' already present!
> debugfs: File 'max_uV' in directory '/' already present!
> debugfs: File 'constraint_flags' in directory '/' already present!
>
> on any further calls.
>
> Fixes: 2715bb11cfff ("regulator: core: Fix more error checking for debugfs_create_dir()")
> Fixes: 08880713ceec ("regulator: core: Streamline debugfs operations")
> Cc: stable@xxxxxxxxxxxxxxx
> Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>

FTR,
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68korg

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