linux-kernel - Re: Correct use of __init and _

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Message-ID: <20071226235012.04373e0d@siona>
Date:	Wed, 26 Dec 2007 23:50:12 +0100
From:	Haavard Skinnemoen <hskinnemoen@...el.com>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Adrian McMenamin <lkmladrian@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Correct use of __init and __devinit

On Mon, 24 Dec 2007 14:01:43 +0100
Sam Ravnborg <sam@...nborg.org> wrote:

> So of the principle of least suprise it is best to use __devinit
> for the probe function as most other drivers do. And if
> the driver model happens to call your probe function after
> init time then we will not oops.

If you're dealing with platform_devices, you can use
platform_driver_probe() and remove the probe() function from the
platform_driver struct to ensure this never happens.

This is only ok for non-hotpluggable devices, of course.

Haavard
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