From: Michael Neuling <mikey@neuling.org>
Date: Tue, 19 Aug 2014 04:48:01 +0000 (+1000)
Subject: powerpc/powernv: Check OPAL elog calls exist before using
X-Git-Tag: fixes-against-v3.18-rc2~117^2~97
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7dc992ec7b3fd875b05f49f454a922ee94af330b;p=pandora-kernel.git

powerpc/powernv: Check OPAL elog calls exist before using

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

This avoids littering the OPAL console with:
  "OPAL: Called with bad token 74"

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