Re: [PATCH 012/143] USB: move twl4030_usb's probe function to.devinit.text
From: Uwe Kleine-König
Date: Tue Jun 16 2009 - 02:11:33 EST
On Mon, Jun 15, 2009 at 10:22:07PM -0700, Greg Kroah-Hartman wrote:
> A pointer to twl4030_usb_probe 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.
I wonder if this kind of error could be detected automatically. That is
at probe time check if the probe function is in the .init.text section.
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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