Re: [PATCH v2 02/18] iio: accel: mma8452: Simplify with dev_err_probe()

Andy Shevchenko
2020-08-27T19:45:25Z

On Thu, Aug 27, 2020 at 10:27 PM Krzysztof Kozlowski <krzk@kernel.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@gmail.com>

> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> ---
> drivers/iio/accel/mma8452.c | 20 ++++++--------------
> 1 file changed, 6 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
> index 4e6e70250048..104b87b98455 100644
> --- a/drivers/iio/accel/mma8452.c
> +++ b/drivers/iio/accel/mma8452.c
> @@ -1538,22 +1538,14 @@ static int mma8452_probe(struct i2c_client *client,
> data->chip_info = match->data;
>
> data->vdd_reg = devm_regulator_get(&client->dev, "vdd");
> - if (IS_ERR(data->vdd_reg)) {
> - if (PTR_ERR(data->vdd_reg) == -EPROBE_DEFER)
> - return -EPROBE_DEFER;
> -
> - dev_err(&client->dev, "failed to get VDD regulator!\n");
> - return PTR_ERR(data->vdd_reg);
> - }
> + if (IS_ERR(data->vdd_reg))
> + return dev_err_probe(&client->dev, PTR_ERR(data->vdd_reg),
> + "failed to get VDD regulator!\n");
>
> data->vddio_reg = devm_regulator_get(&client->dev, "vddio");
> - if (IS_ERR(data->vddio_reg)) {
> - if (PTR_ERR(data->vddio_reg) == -EPROBE_DEFER)
> - return -EPROBE_DEFER;
> -
> - dev_err(&client->dev, "failed to get VDDIO regulator!\n");
> - return PTR_ERR(data->vddio_reg);
> - }
> + if (IS_ERR(data->vddio_reg))
> + return dev_err_probe(&client->dev, PTR_ERR(data->vddio_reg),
> + "failed to get VDDIO regulator!\n");
>
> ret = regulator_enable(data->vdd_reg);
> if (ret) {
> --
> 2.17.1
>

--
With Best Regards,
Andy Shevchenko