From: "Ardelean, Alexandru" <alexandru.Ardelean@analog.com>
To: "hslester96@gmail.com" <hslester96@gmail.com>
Cc: "pmeerw@pmeerw.net" <pmeerw@pmeerw.net>,
"linux-iio@vger.kernel.org" <linux-iio@vger.kernel.org>,
"lars@metafoo.de" <lars@metafoo.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"paul.cercueil@analog.com" <paul.cercueil@analog.com>,
"Hennerich, Michael" <Michael.Hennerich@analog.com>,
"knaack.h@gmx.de" <knaack.h@gmx.de>,
"jic23@kernel.org" <jic23@kernel.org>
Subject: Re: [PATCH v3] iio: amplifiers: ad8366: Change devm_gpiod_get() to optional and add the missed check
Date: Wed, 3 Jun 2020 10:19:12 +0000 [thread overview]
Message-ID: <36f033adf9b53adb289e7569ea5fca647c0dbb7a.camel@analog.com> (raw)
In-Reply-To: <20200603092610.1424489-1-hslester96@gmail.com>
On Wed, 2020-06-03 at 17:26 +0800, Chuhong Yuan wrote:
> Since if there is no GPIO, nothing happens, replace devm_gpiod_get()
> with devm_gpiod_get_optional().
> Also add IS_ERR() to fix the missing-check bug.
>
Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
> Fixes: cee211f4e5a0 ("iio: amplifiers: ad8366: Add support for the ADA4961
> DGA")
> Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
> ---
> Changes in v3:
> - Change devm_gpiod_get() to optional.
> - Modify description.
>
> drivers/iio/amplifiers/ad8366.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c
> index 62167b87caea..8819e8997f76 100644
> --- a/drivers/iio/amplifiers/ad8366.c
> +++ b/drivers/iio/amplifiers/ad8366.c
> @@ -262,8 +262,12 @@ static int ad8366_probe(struct spi_device *spi)
> case ID_ADA4961:
> case ID_ADL5240:
> case ID_HMC1119:
> - st->reset_gpio = devm_gpiod_get(&spi->dev, "reset",
> + st->reset_gpio = devm_gpiod_get_optional(&spi->dev, "reset",
> GPIOD_OUT_HIGH);
> + if (IS_ERR(st->reset_gpio)) {
> + ret = PTR_ERR(st->reset_gpio);
> + goto error_disable_reg;
> + }
> indio_dev->channels = ada4961_channels;
> indio_dev->num_channels = ARRAY_SIZE(ada4961_channels);
> break;
next prev parent reply other threads:[~2020-06-03 10:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-03 9:26 [PATCH v3] iio: amplifiers: ad8366: Change devm_gpiod_get() to optional and add the missed check Chuhong Yuan
2020-06-03 10:19 ` Ardelean, Alexandru [this message]
2020-06-06 15:12 ` Jonathan Cameron
2020-06-03 18:00 Markus Elfring
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