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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Sun, 17 Apr 2016 22:18:59 +0530
From:	Laxman Dewangan <ldewangan@...dia.com>
To:	Jonathan Cameron <jic23@...nel.org>, <corbet@....net>,
	<knaack.h@....de>, <lars@...afoo.de>, <pmeerw@...erw.net>
CC:	<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-iio@...r.kernel.org>
Subject: Re: [PATCH 1/3] iio: core: Add devm_ APIs for iio_channel_{get,release}


On Sunday 17 April 2016 05:30 PM, Jonathan Cameron wrote:
> On 06/04/16 11:31, Laxman Dewangan 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.
>>
>> Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
> Applied to the togreg branch of iio.git.
> I guess the thermal driver use case will hit a cycle or so behind this.
>

Thanks for applying this.

Yes, thermal driver will use this in future release. This is to avoid 
any syncup between subsystem.