On 07/07/2010 03:07 PM, Jiri Slaby wrote:
>>> --- a/arch/x86/kvm/i8254.c
>>> +++ b/arch/x86/kvm/i8254.c
>>> @@ -696,6 +696,7 @@ struct kvm_pit *kvm_create_pit(struct kvm *kvm, u32
>>> flags)
>>>
>>> pit->wq = create_singlethread_workqueue("kvm-pit-wq");
>>> if (!pit->wq) {
>>> + mutex_unlock(&pit->pit_state.lock);
>>> kfree(pit);
>>> return NULL;
>>> }
>>
>> A cleanliness comment: why is that tear-down/dealloc sequence open-coded? It
>> should be at the end of the function, with goto labels, like we do it in
>> similar cases.
>
> Because the lock is around a block only. I usually don't create a goto
> fail-paths in these cases.
To be more precise what I mean by that:
if ()
return;
lock();
...
if () { [single if inside the crit section]
unlock();
return;
}
...
unlock()
...
if ()
return;
...
if ()
return;
--
js
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