powerpc/powernv/npu: Check mmio_atsd array bounds when populating

A broken device tree might contain more than 8 values and introduce hard
to debug memory corruption bug. This adds the boundary check.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Alexey Kardashevskiy 2018-12-19 19:52:28 +11:00 • committed by Michael Ellerman
commit 135ef95405