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| author | Ingo Molnar <mingo@elte.hu> | 2009-06-06 20:21:25 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-06 20:21:28 +0200 |
| commit | 75b5032212641f6d38ac041416945e70da833b68 (patch) | |
| tree | bb827401e00c1681a29e75ade3b4ecc903df1a54 /drivers/acpi/processor_perflib.c | |
| parent | perf_counter tools: Add 'perf annotate' feature (diff) | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anh... (diff) | |
| download | linux-75b5032212641f6d38ac041416945e70da833b68.tar.xz linux-75b5032212641f6d38ac041416945e70da833b68.zip | |
Merge branch 'linus' into perfcounters/core
Merge reason: Pick up the latest fixes before the -v8 perfcounters
release.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/acpi/processor_perflib.c')
| -rw-r--r-- | drivers/acpi/processor_perflib.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index cafb41000f6b..60e543d3234e 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -309,9 +309,15 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr) (u32) px->bus_master_latency, (u32) px->control, (u32) px->status)); - if (!px->core_frequency) { - printk(KERN_ERR PREFIX - "Invalid _PSS data: freq is zero\n"); + /* + * Check that ACPI's u64 MHz will be valid as u32 KHz in cpufreq + */ + if (!px->core_frequency || + ((u32)(px->core_frequency * 1000) != + (px->core_frequency * 1000))) { + printk(KERN_ERR FW_BUG PREFIX + "Invalid BIOS _PSS frequency: 0x%llx MHz\n", + px->core_frequency); result = -EFAULT; kfree(pr->performance->states); goto end; |