linux-kernel - Re: [PATCH 1/3] platform: add common resource requesting and mapping helper

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Date:	Wed, 1 Feb 2012 17:10:05 -0700
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Barry Song <21cnbao@...il.com>,
	Wolfram Sang <w.sang@...gutronix.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org, workgroup.linux@....com,
	linux-mtd@...ts.infradead.org,
	Atsushi Nemoto <anemo@....ocn.ne.jp>,
	Barry Song <Baohua.Song@....com>,
	David Woodhouse <dwmw2@...radead.org>,
	Erik Gilling <konkers@...gle.com>,
	Barry Song <Barry.Song@....com>
Subject: Re: [PATCH 1/3] platform: add common resource requesting and mapping
 helper

On Wed, Feb 01, 2012 at 12:56:42PM +0000, Mark Brown wrote:
> On Wed, Feb 01, 2012 at 10:11:10AM +0800, Barry Song wrote:
> 
> > i think it makes sense for us to have platform_devm_request_irq() and
> > similar things. i'll take care.
> 
> Note that this one is more tricky than most as it's really important
> that the interrupt handler can't be called when the data it needs and so
> on have been freed.  With things like memory this really doesn't matter
> and you can happily free in any order.

Good point.

g.

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