powerpc/powernv: Fix corrupted PE allocation bitmap on releasing PE

[Michael Ellerman]

On Tue, 2016-06-09 at 04:17:18 UTC, Gavin Shan wrote:
> In pnv_ioda_free_pe(), the PE object (including the associated PE
> number) is cleared before resetting the corresponding bit in the
> PE allocation bitmap. It means PE#0 is always released to the bitmap
> wrongly.
> 
> This fixes above issue by caching the PE number before the PE object
> is cleared.
> 
> Fixes: 1e9167726c41 ("powerpc/powernv: Use PE instead of number during setup and release"
> Signed-off-by: Gavin Shan <gwshan at linux.vnet.ibm.com>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/caa58f808834fca9a4443233fd

I added:
    Cc: stable at vger.kernel.org # v4.7+

cheers