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authorDave Jones <davej@redhat.com>2006-11-22 20:42:01 -0500
committerLinus Torvalds <torvalds@woody.osdl.org>2006-11-23 09:18:55 -0800
commit0916bd3ebb7cefdd0f432e8491abe24f4b5a101e (patch)
tree9db86aafad36e04dd221fc65c90b961d7040c80d /drivers/acpi
parent5261d661b49e0c133395c88da193457f62db439a (diff)
[PATCH] Correct bound checking from the value returned from _PPC method.
processor_perflib.c::acpi_processor_ppc_notifier() check if the value returned by the processor's _PPC method is 0 and return failed if so. This is wrong since 0 indicate that the bios think the processor can go to the highest frequency. This patch for example fix the HP NX 6125 to allow its highest frequency to be available. Signed-off-by: Bruno Ducrot <ducrot@poupinou.org> Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/processor_perflib.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 7ba5e49ab30..6fd174a3714 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -83,10 +83,8 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb,
goto out;
ppc = (unsigned int)pr->performance_platform_limit;
- if (!ppc)
- goto out;
- if (ppc > pr->performance->state_count)
+ if (ppc >= pr->performance->state_count)
goto out;
cpufreq_verify_within_limits(policy, 0,