tree 18875a103cc4bce755cc76ba05a0942ac07cec54
parent 7dc992ec7b3fd875b05f49f454a922ee94af330b
author Michael Neuling <mikey@neuling.org> 1408423682 +1000
committer Michael Ellerman <mpe@ellerman.id.au> 1411650876 +1000

powerpc/powernv: Check OPAL dump calls exist before using

Check that the OPAL_DUMP_READ token exists before initalising the elog
infrastructure.

This avoids littering the OPAL console with:
  "OPAL: Called with bad token 91"

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>