Hanjun Guo wrote:
> On 2013-5-29 7:30, Rafael J. Wysocki wrote:
>> On Thursday, May 23, 2013 08:44:26 PM Hanjun Guo wrote:
>>> In acpi_processor_add(), get_cpu_device() will return NULL sometimes,
>>> although the chances are small, I think it should be fixed.
>>>
>>> Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
>>
>> This patch isn't necessary any more after the changes queued up for 3.11
>> in the acpi-hotplug branch of the linux-pm.git tree.
>
> Ok, I noticed your patch set, just drop my patch.
But shouldn't this go to stable at least? I checked linux-3.9.4
and it applies fine. Whether this is relevant for other stable
series I will leave up to somebody else. ;)
Martin
>
> Thanks
> Hanjun
>
>>
>> Thanks,
>> Rafael
>>
>>
>>> ---
>>> drivers/acpi/processor_driver.c | 4 ++++
>>> 1 files changed, 4 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
>>> index bec717f..dd64f23 100644
>>> --- a/drivers/acpi/processor_driver.c
>>> +++ b/drivers/acpi/processor_driver.c
>>> @@ -579,6 +579,10 @@ static int __cpuinit acpi_processor_add(struct acpi_device
>>> *device)
>>> per_cpu(processors, pr->id) = pr;
>>>
>>> dev = get_cpu_device(pr->id);
>>> + if (!dev) {
>>> + result = -ENODEV;
>>> + goto err_clear_processor;
>>> + }
>>> if (sysfs_create_link(&device->dev.kobj, &dev->kobj, "sysdev")) {
>>> result = -EFAULT;
>>> goto err_clear_processor;
>>>
>
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