linux-kernel - Re: [PATCH 10/24] Input: bu21029_ts

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Message-ID: <CAHp75Vfmec6oaAWCkO7M_8uJk7Y1-x3Pz5AJVx_D3XGkRmQVvg@mail.gmail.com>
Date:   Thu, 27 Aug 2020 12:11:01 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bastien Nocera <hadess@...ess.net>,
        Sangwon Jee <jeesw@...fas.com>,
        Eugen Hristev <eugen.hristev@...rochip.com>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-input <linux-input@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>
Subject: Re: [PATCH 10/24] Input: bu21029_ts - Simplify with dev_err_probe()

On Wed, Aug 26, 2020 at 9:19 PM Krzysztof Kozlowski <krzk@...nel.org> wrote:
>
> Common pattern of handling deferred probe can be simplified with
> dev_err_probe().  Less code and also it prints the error value.

Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>

> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> ---
>  drivers/input/touchscreen/bu21029_ts.c | 20 ++++++--------------
>  1 file changed, 6 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/input/touchscreen/bu21029_ts.c b/drivers/input/touchscreen/bu21029_ts.c
> index 49a8d4bbca3a..96c178b606dc 100644
> --- a/drivers/input/touchscreen/bu21029_ts.c
> +++ b/drivers/input/touchscreen/bu21029_ts.c
> @@ -360,23 +360,15 @@ static int bu21029_probe(struct i2c_client *client,
>         }
>
>         bu21029->vdd = devm_regulator_get(&client->dev, "vdd");
> -       if (IS_ERR(bu21029->vdd)) {
> -               error = PTR_ERR(bu21029->vdd);
> -               if (error != -EPROBE_DEFER)
> -                       dev_err(&client->dev,
> -                               "failed to acquire 'vdd' supply: %d\n", error);
> -               return error;
> -       }
> +       if (IS_ERR(bu21029->vdd))
> +               return dev_err_probe(&client->dev, PTR_ERR(bu21029->vdd),
> +                                    "failed to acquire 'vdd' supply\n");
>
>         bu21029->reset_gpios = devm_gpiod_get_optional(&client->dev,
>                                                        "reset", GPIOD_OUT_HIGH);
> -       if (IS_ERR(bu21029->reset_gpios)) {
> -               error = PTR_ERR(bu21029->reset_gpios);
> -               if (error != -EPROBE_DEFER)
> -                       dev_err(&client->dev,
> -                               "failed to acquire 'reset' gpio: %d\n", error);
> -               return error;
> -       }
> +       if (IS_ERR(bu21029->reset_gpios))
> +               return dev_err_probe(&client->dev, PTR_ERR(bu21029->reset_gpios),
> +                                    "failed to acquire 'reset' gpio\n");
>
>         in_dev = devm_input_allocate_device(&client->dev);
>         if (!in_dev) {
> --
> 2.17.1
>


-- 
With Best Regards,
Andy Shevchenko