On Tue, Dec 01, 2015 at 05:45:17PM +0100, Arnd Bergmann wrote:
> On Tuesday 01 December 2015 16:40:57 Mark Brown wrote:

> >         mutex_lock(&rdev->mutex);
> > -       for (i = 1; rdev->supply; rdev = rdev->supply->rdev, i++)
> > +       for (i = 1; rdev; rdev = rdev->supply->rdev, i++)
> >                 mutex_lock_nested(&rdev->mutex, i);

> I think now we have a double lock, the initial mutex_lock() needs to
> be removed again.

Ugh, I even made that fix before I sent but didn't actually commit it
:(