Re: [PATCH v2 11/18] iio: chemical: scd30: Simplify with dev_err_probe()

Andy Shevchenko
2020-08-27T19:55:44Z

On Thu, Aug 27, 2020 at 10:28 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>
> Acked-by: Tomasz Duszynski <tomasz.duszynski@octakon.com>
>
> ---
>
> Changes since v1:
> 1. Wrap dev_err_probe() lines at 100 character
> 2. Add Ack
> ---
> drivers/iio/chemical/scd30_core.c | 9 ++-------
> 1 file changed, 2 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/iio/chemical/scd30_core.c b/drivers/iio/chemical/scd30_core.c
> index eac76972f83e..4d0d798c7cd3 100644
> --- a/drivers/iio/chemical/scd30_core.c
> +++ b/drivers/iio/chemical/scd30_core.c
> @@ -705,13 +705,8 @@ int scd30_probe(struct device *dev, int irq, const char *name, void *priv,
> indio_dev->available_scan_masks = scd30_scan_masks;
>
> state->vdd = devm_regulator_get(dev, "vdd");
> - if (IS_ERR(state->vdd)) {
> - if (PTR_ERR(state->vdd) == -EPROBE_DEFER)
> - return -EPROBE_DEFER;
> -
> - dev_err(dev, "failed to get regulator\n");
> - return PTR_ERR(state->vdd);
> - }
> + if (IS_ERR(state->vdd))
> + return dev_err_probe(dev, PTR_ERR(state->vdd), "failed to get regulator\n");
>
> ret = regulator_enable(state->vdd);
> if (ret)
> --
> 2.17.1
>

--
With Best Regards,
Andy Shevchenko