Re: [PATCH] regulator: core: Move regulator release to avoid deadlock

[Laxman Dewangan]

On Monday 29 October 2012 09:44 PM, Mark Brown wrote:
> * PGP Signed by an unknown key
>
> On Mon, Oct 29, 2012 at 09:33:33AM +0000, Charles Keepax wrote:
> > regulator_put function was called whilst holding the
> > regulator_list_mutex, which is also locked from regulator_put. This
> > causes deadlock when failing to register a regulator.
> Applied, thanks.

This patch create the crash in following case:
- If there is of rail supply and supply does not found. In this case it 
goes to scrub and rdev->supply at this point shows NULL but when call 
the function device_unregister(&rdev->dev), the rdev->supply becomes 
random pointer.

What happen if we do the device_unregister() outside the mutex lock?
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