linux-kernel - Re: [PATCH V2] rtc: add devm_rtc_device

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Message-ID: <20130226223304.GB20670@core.coreip.homeip.net>
Date:	Tue, 26 Feb 2013 14:33:04 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Jingoo Han <jg1.han@...sung.com>
Cc:	'Andrew Morton' <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, 'Tejun Heo' <tj@...nel.org>,
	'Greg KH' <greg@...ah.com>,
	'Alessandro Zummo' <a.zummo@...ertech.it>,
	rtc-linux@...glegroups.com
Subject: Re: [PATCH V2] rtc: add devm_rtc_device_{register,unregister}()

On Tue, Feb 26, 2013 at 10:21:06AM +0900, Jingoo Han wrote:
> +/**
> + * devm_rtc_device_unregister - resource managed devm_rtc_device_unregister()
> + * @dev: the device to unregister
> + * @rtc: the RTC class device to unregister
> + *
> + * Deallocated a rtc allocated with devm_rtc_device_register(). Normally this
> + * function will not need to be called and the resource management code will
> + * ensure that the resource is freed.
> + */
> +void devm_rtc_device_unregister(struct device *dev, struct rtc_device *rtc)

Why do you need a separate function? You can add a flag to struct rtc_device
so it knows whether it is devm-managed or not and behave accordingly.
And then you can do

#define devm_rtc_device_unregister rtc_device_unregister

Thanks.

-- 
Dmitry
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