linux-kernel - Re: [PATCH 1/3] input: spear-keyboard: Use devm

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Message-ID: <CAKohpo=PdNoBzpZoHWcHSqh_az2OOGGGegNzCXPxjUDVOHostw@mail.gmail.com>
Date:	Fri, 9 Nov 2012 08:06:29 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	spear-devel@...t.st.com
Subject: Re: [PATCH 1/3] input: spear-keyboard: Use devm_*() routines

On 8 November 2012 22:08, Dmitry Torokhov <dmitry.torokhov@...il.com> wrote:
> On Thu, Nov 08, 2012 at 07:10:47PM +0530, Viresh Kumar wrote:
> It also breaks the error unwinding/removal of the driver as it frees
> input device while IRQ handler is still active.

I have heard of this argument before, probably from you. :)
Just need clarification again. How will we get an interrupt when the controller
is stopped, unless we have a shared irq.

> I will push the patch which implements devm_input_allocate_device() to
> my 'next' branch in a few, please use it because it will make sure input
> device will stick around long enough.

Will surely use that.

>> +     kbd->io_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
>
> There is devm_request_and_ioremap() which you can use here.

Should have been done in V1 only.

--
viresh
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