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cpufreq acpi: only call _PPC after cpufreq ACPI init funcs got called already

Browse source 
Ingo Molnar provided a fix to not call _PPC at processor driver
initialization time in "[PATCH] ACPI: fix cpufreq regression" (git
commit e4233dec74)

But it can still happen that _PPC is called at processor driver
initialization time.

This patch should make sure that this is not possible anymore.

Signed-off-by: Thomas Renninger <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Dave Jones <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Venkatesh Pallipadi <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Thomas Renninger 2008-07-29 22:32:58 -07:00 • committed by Linus Torvalds
commit a1531acd43
4 changed files with 23 additions and 2 deletions
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3
drivers/cpufreq/cpufreq.c
View file

@ -825,6 +825,9 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
policy->user_policy.min = policy->cpuinfo.min_freq;
policy->user_policy.max = policy->cpuinfo.max_freq;
blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
CPUFREQ_START, policy);
#ifdef CONFIG_SMP
#ifdef CONFIG_HOTPLUG_CPU