From: Jan Beulich <JBeulich@novell.com>
Date: Fri, 8 Oct 2010 08:59:38 +0000 (-0400)
Subject: hwmon: (coretemp) fix reading of microcode revision (v2)
X-Git-Tag: v2.6.37-rc1~118^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3247800676c4a04352cde72b9935b57ffc72ce15;p=pandora-kernel.git

hwmon: (coretemp) fix reading of microcode revision (v2)

According to the documentation, simply reading the respective MSR
isn't sufficient: It should be written with zeros, cpuid(1) be
executed, and then read (see arch/x86/kernel/cpu/intel.c for an
example).

v2: Fail probe when microcode revision cannot be determined, but is
needed to check for proper operation.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
---

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