linux-kernel - Re: [PATCH 15/24] Input: elants_i2c

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Date:   Thu, 27 Aug 2020 12:13:09 +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 15/24] Input: elants_i2c - Simplify with dev_err_probe()

On Wed, Aug 26, 2020 at 9:21 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/elants_i2c.c | 22 ++++++----------------
>  1 file changed, 6 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
> index b0bd5bb079be..ad299eb333f1 100644
> --- a/drivers/input/touchscreen/elants_i2c.c
> +++ b/drivers/input/touchscreen/elants_i2c.c
> @@ -1245,24 +1245,14 @@ static int elants_i2c_probe(struct i2c_client *client,
>         i2c_set_clientdata(client, ts);
>
>         ts->vcc33 = devm_regulator_get(&client->dev, "vcc33");
> -       if (IS_ERR(ts->vcc33)) {
> -               error = PTR_ERR(ts->vcc33);
> -               if (error != -EPROBE_DEFER)
> -                       dev_err(&client->dev,
> -                               "Failed to get 'vcc33' regulator: %d\n",
> -                               error);
> -               return error;
> -       }
> +       if (IS_ERR(ts->vcc33))
> +               return dev_err_probe(&client->dev, PTR_ERR(ts->vcc33),
> +                                    "Failed to get 'vcc33' regulator\n");
>
>         ts->vccio = devm_regulator_get(&client->dev, "vccio");
> -       if (IS_ERR(ts->vccio)) {
> -               error = PTR_ERR(ts->vccio);
> -               if (error != -EPROBE_DEFER)
> -                       dev_err(&client->dev,
> -                               "Failed to get 'vccio' regulator: %d\n",
> -                               error);
> -               return error;
> -       }
> +       if (IS_ERR(ts->vccio))
> +               return dev_err_probe(&client->dev, PTR_ERR(ts->vccio),
> +                                    "Failed to get 'vccio' regulator\n");
>
>         ts->reset_gpio = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_LOW);
>         if (IS_ERR(ts->reset_gpio)) {
> --
> 2.17.1
>


-- 
With Best Regards,
Andy Shevchenko