From 561d9a969455cb009bb15b63e1d925dc527e7a9d Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Mon, 3 Dec 2007 18:01:50 +0100
Subject: [PATCH] HWMON: coretemp, suspend fix
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It's not permitted to unregister a device after devices have been suspended.
It causes deadlocks to appear on systems with coretemp hwmon loaded.  To avoid
this, we can make coretemp_cpu_callback() do nothing if the _FROZEN bit is set
in action.
 
Also, in other cases it's generally too late to unregister the coretemp device
if the CPU is already dead, so it should be unregistered on CPU_DOWN_PREPARE.
 
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Mark M. Hoffman <mhoffman@lightlink.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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