From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 21 May 2013 09:20:50 +0000 (+0800)
Subject: powerpc/nvram64: Need return the related error code on failure occurs
X-Git-Tag: v3.11-rc1~94^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7029705a9d0544186c29ae09708b3e5adb512835;p=pandora-kernel.git

powerpc/nvram64: Need return the related error code on failure occurs

When error occurs, need return the related error code to let upper
caller know about it.

ppc_md.nvram_size() can return the error code (e.g. core99_nvram_size()
in 'arch/powerpc/platforms/powermac/nvram.c').

Also set ret value when only need it, so can save structions for normal
cases.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

Reading git-diff-tree failed