diff options
| author | Daniel J Blueman <daniel.blueman@gmail.com> | 2010-07-24 00:06:52 +0200 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2010-07-26 21:25:34 +0200 |
| commit | 3847d223f2e4da5ceb47ea8996618010192f3197 (patch) | |
| tree | 05e83cca56e1f887f4b59a76f4d63a1016644d8d /arch/x86 | |
| parent | [CPUFREQ] pcc driver should check for pcch method before calling _OSC (diff) | |
| download | linux-3847d223f2e4da5ceb47ea8996618010192f3197.tar.xz linux-3847d223f2e4da5ceb47ea8996618010192f3197.zip | |
[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>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c index 01bd25c3c7ca..900702888bfb 100644 --- a/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c @@ -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); |