Re: kernfs/rtc: circular dependency between kernfs and ops_lock

[Lars-Peter Clausen]

On 03/31/2014 11:46 AM, Alessandro Zummo wrote:
> On Sun, 30 Mar 2014 12:04:16 -0400
> Sasha Levin <sasha.levin@xxxxxxxxxx> wrote:
>
> > > Look good, thanks!
> >
> > Or not...
> >
> > Hit it again during overnight fuzzing:
>
>   I think this is a different bug, please try this.

It's the same bug, device_unregister(&rtc->dev) will try to unregister all 
sysfs files attached to the device and that function is still called with 
the rtc mutex held.

- Lars

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