[PATCH] ARM: KVM: fix unbalanced get_cpu() in access_dcsw

[Will Deacon]

On Fri, Apr 12, 2013 at 06:13:48PM +0100, Marc Zyngier wrote:
> In the very unlikely event where a guest would be foolish enough to
> *read* from a write-only cache maintainance register, we end up
> with preemption disabled, due to a misplaced get_cpu().
> 
> Just move the "is_write" test outside of the critical section.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>

I found it second time around!

  Reported-by: Will Deacon <will.deacon at arm.com>

Will