From: Michel Lespinasse <walken@google.com>
Date: Tue, 28 Jan 2014 13:06:22 +0000 (-0800)
Subject: firmware: google memconsole driver fixes
X-Git-Tag: v3.15-rc1~140^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cb88759107292b4bf36d13c73129add580d4e26e;p=pandora-kernel.git

firmware: google memconsole driver fixes

The google memconsole driver is currently broken upstream, as it tries
to read memory that is described as reserved in /proc/iomem, by
dereferencing a pointer obtained through phys_to_virt(). This triggers
a kernel fault as such regions are unmapped after early boot.

The proper workaround is to use ioremap_cache() / iounmap() around such
accesses.

As some unrelated changes, I also converted some printks to use pr_info()
and added some missing __init annotations.

Tested: booted dbg build, verified I could read /sys/firmware/log

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Mike Waychison <mikew@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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