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[CPUFREQ] fix double freeing in error path of pcc-cpufreq 

Prevent double freeing on error path.

Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Daniel J Blueman 2010-07-23 23:06:52 +01:00 committed by Dave Jones
parent 47f8bcf362
commit 3847d223f2
1 changed files with 6 additions and 12 deletions
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18
arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c
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@ -368,22 +368,16 @@ static int __init pcc_cpufreq_do_osc(acpi_handle *handle)
return -ENODEV;
out_obj = output.pointer;
if (out_obj->type != ACPI_TYPE_BUFFER) {
ret = -ENODEV;
goto out_free;
}
if (out_obj->type != ACPI_TYPE_BUFFER)
return -ENODEV;
errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0);
if (errors) {
ret = -ENODEV;
goto out_free;
}
if (errors)
return -ENODEV;
supported = *((u32 *)(out_obj->buffer.pointer + 4));
if (!(supported & 0x1)) {
ret = -ENODEV;
goto out_free;
}
if (!(supported & 0x1))
return -ENODEV;
out_free:
kfree(output.pointer);