From: Ralf Baechle on
On Thu, Feb 04, 2010 at 08:56:50PM +0100, Uwe Kleine-K�nig wrote:

> A pointer to a probe callback is passed to the core via
> platform_driver_register and so the function must not disappear when the
> .init sections are discarded. Otherwise (if also having HOTPLUG=y)
> unbinding and binding a device to the driver via sysfs will result in an
> oops as does a device being registered late.
>
> An alternative to this patch is using platform_driver_probe instead of
> platform_driver_register plus removing the pointer to the probe function
> from the struct platform_driver.

sgiwd93 bits looks good, so

Acked-by: Ralf Baechle <ralf(a)linux-mips.org>

The IP22 hardware doesn't support hotplugging so this bug isn't dangerous.

Ralf
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