Commit 0916bd3e authored by Dave Jones's avatar Dave Jones Committed by Linus Torvalds
Browse files

[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: default avatarBruno Ducrot <>
Cc: "Pallipadi, Venkatesh" <>
Signed-off-by: default avatarDave Jones <>
Signed-off-by: default avatarLinus Torvalds <>
parent 5261d661
......@@ -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,
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