linux-kernel - acpi_cpufreq/cpufreq_stats: "warning: sysfs group ... not found"

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Date:	Fri, 12 Dec 2008 08:42:03 +0100
From:	Philipp Marek <philipp.marek@...rion.com>
To:	linux-kernel@...r.kernel.org
Subject: acpi_cpufreq/cpufreq_stats: "warning: sysfs group ... not found"

Hello everybody!

My notebook is using acpi_cpufreq and cpufreq_stats, with 2.6.27.6, but the 
same happened for 2.6.26 (and IIRC 2.6.25 and earlier).

I have a script that uses the /sys/ files to show some information.
If I "rmmod acpi_cpufreq" and "modprobe acpi_cpufreq", followed by "rmmod 
cpufreq_stats" (because there's no directory "stats" below /sys/.../cpufreq), 
I get this warning.

The calltrace shows
	...
	? mutex_unlock
	cpufreq_stats_free_table+0x54
	cpufreq_stats_exit+0x45
	sys_delete_module
	...

Regards,

Phil

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