linux-kernel - Re: [PATCH v1 2/2] serial: sh-sci: Switch to use dev_err_probe

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Date:   Mon, 14 Feb 2022 15:57:51 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiri Slaby <jirislaby@...nel.org>,
        Javier Martinez Canillas <javierm@...hat.com>
Subject: Re: [PATCH v1 2/2] serial: sh-sci: Switch to use dev_err_probe_ptr()

Hi Andy,

On Mon, Feb 14, 2022 at 3:33 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
> Instead of
>         return ERR_PTR(dev_err_probe(...));
> call
>         return dev_err_probe_ptr(...);
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Thanks for your patch!

> --- a/drivers/tty/serial/sh-sci.c
> +++ b/drivers/tty/serial/sh-sci.c
> @@ -3199,8 +3199,7 @@ static struct plat_sci_port *sci_parse_dt(struct platform_device *pdev,
>
>         rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
>         if (IS_ERR(rstc))
> -               return ERR_PTR(dev_err_probe(&pdev->dev, PTR_ERR(rstc),
> -                                            "failed to get reset ctrl\n"));
> +               return dev_err_probe_ptr(&pdev->dev, PTR_ERR(rstc), "failed to get reset ctrl\n");

I think the joined line is too long, so please keep it split.

drivers/tty/serial/sh-sci.c:3824:10: error: too few arguments to
function ‘dev_err_probe_ptr’

Indeed, dev_err_probe_ptr() is not a varargs function.
BTW, I do like the general idea.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

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