Re: 2.6.17-rc4-mm1

[Stephen Hemminger]

Jean Delvare wrote:
> Michal Piotrowski reported:
>   
> > > When I try to "modprobe -r i2c_i801" modprobe hangs
> > >       
>
> Quoting myself:
>   
> > I can reproduce it, with both i2c-i801 and i2c-parport, so it's not
> > related to a specific driver. I'm currently performing a bisection on
> > 2.6.17-rc4-mm1 to try and isolate the culprit. It seems to point to
> > gregkh-driver-*. i2c patches are innocent for sure, including Kumar's
> > ones.
> >     
>
> And the winner is...
> gregkh-driver-driver-core-class_device_add-needs-error-checks.patch
>
> Stephen, Greg?
>
>   
Look at the error return from class_device_register. I bet
it was working before because the class_device_register wasn't
checking something, now it is and that exposes a bug that has
existed in i2c since sysfs support was added.

I can make up a more verbose version if that helps
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