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From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Ivan Mikhaylov <i.mikhaylov@yadro.com>
Cc: Jonathan Cameron <jic23@kernel.org>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
	Jean Delvare <jdelvare@suse.com>,
	Guenter Roeck <linux@roeck-us.net>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-iio <linux-iio@vger.kernel.org>,
	linux-hwmon@vger.kernel.org
Subject: Re: [PATCH 2/4] iio: proximity: vcnl3020: add threshold options
Date: Sat, 1 May 2021 21:51:15 +0300	[thread overview]
Message-ID: <CAHp75VeRpEgpFe2J0epjJQsBS346B+vDJ+74fFumFCN2Sy6FCA@mail.gmail.com> (raw)
In-Reply-To: <20210430152419.261757-3-i.mikhaylov@yadro.com>

On Fri, Apr 30, 2021 at 6:16 PM Ivan Mikhaylov <i.mikhaylov@yadro.com> wrote:
>
> Add the low/high threshold options.

...

> +                       rc = regmap_bulk_read(data->regmap, VCNL_PS_HI_THR_HI,
> +                                             &res, 2);

sizeof(res)

> +                       *val = be16_to_cpu(res);

So, the rule of thumb is not putting anything to the output, until you
know that there is no error.

> +                       if (rc < 0)
> +                               return rc;

...

> +                       rc = regmap_bulk_read(data->regmap, VCNL_PS_LO_THR_HI,
> +                                             &res, 2);
> +                       *val = be16_to_cpu(res);
> +                       if (rc < 0)
> +                               return rc;

As per above.

...

> +                       rc = regmap_bulk_write(data->regmap, VCNL_PS_HI_THR_HI,
> +                                              &buf, 2);

sizeof(buf) ?

...

> +                       rc = regmap_bulk_write(data->regmap, VCNL_PS_LO_THR_HI,
> +                                              &buf, 2);

Ditto.

...

> +end:

out_release_direct_mode:

> +       iio_device_release_direct_mode(indio_dev);
> +       return rc;

-- 
With Best Regards,
Andy Shevchenko

  reply	other threads:[~2021-05-01 18:51 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-30 15:24 [PATCH 0/4] add periodic mode, threshold options and hwmon Ivan Mikhaylov
2021-04-30 15:24 ` [PATCH 1/4] iio: proximity: vcnl3020: add periodic mode Ivan Mikhaylov
2021-05-01 18:48   ` Andy Shevchenko
2021-05-02 18:00   ` Jonathan Cameron
2021-05-04 19:07     ` Ivan Mikhaylov
2021-05-05  8:22       ` Jonathan Cameron
2021-04-30 15:24 ` [PATCH 2/4] iio: proximity: vcnl3020: add threshold options Ivan Mikhaylov
2021-05-01 18:51   ` Andy Shevchenko [this message]
2021-04-30 15:24 ` [PATCH 3/4] iio: proximity: vncl3020: remove mutex from vcnl3020_data Ivan Mikhaylov
2021-05-01 18:53   ` Andy Shevchenko
2021-05-02 17:53   ` Jonathan Cameron
2021-04-30 15:24 ` [PATCH 4/4] hwmon: vcnl3020: add hwmon driver for intrusion sensor Ivan Mikhaylov
2021-04-30 16:38   ` Guenter Roeck
2021-05-04 19:46     ` Ivan Mikhaylov
2021-05-05  8:26       ` Jonathan Cameron
2021-05-05 14:02       ` Guenter Roeck
2021-05-17 17:08         ` Ivan Mikhaylov
2021-05-01  7:07   ` kernel test robot

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