linux-kernel - Re: [PATCH 1/3] iio: core: Add devm_ APIs for iio_channel

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Date:	Wed, 6 Apr 2016 16:49:23 +0300
From:	Daniel Baluta <daniel.baluta@...il.com>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	Jonathan Cameron <jic23@...nel.org>,
	Jonathan Corbet <corbet@....net>,
	Hartmut Knaack <knaack.h@....de>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Meerwald-Stadler <pmeerw@...erw.net>,
	linux-doc@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>
Subject: Re: [PATCH 1/3] iio: core: Add devm_ APIs for iio_channel_{get,release}

On Wed, Apr 6, 2016 at 1:31 PM, Laxman Dewangan <ldewangan@...dia.com> wrote:
> Some of kernel driver uses the IIO framework to get the sensor
> value via ADC or IIO HW driver. The client driver get iio channel
> by iio_channel_get() and release it by calling iio_channel_release().
>
> Add resource managed version (devm_*) of these APIs so that if client
> calls the devm_iio_channel_get() then it need not to release it explicitly,
> it can be done by managed device framework when driver get un-binded.
>
> This reduces the code in error path and also need of .remove callback in
> some cases.
>

Please provide at least one example of code that uses this API.