[libvirt] [PATCH 2/8] Add qemuMonitorGetObjectProperty() method for QMP qom-get command

Michal Privoznik mprivozn at redhat.com
Wed Jul 3 12:20:03 UTC 2013


On 03.07.2013 14:12, Ján Tomko wrote:
> On 07/03/2013 02:03 PM, Michal Privoznik wrote:
>> On 02.07.2013 15:39, John Ferlan wrote:
>>> +    case QEMU_MONITOR_OBJECT_PROPERTY_STRING:
>>> +        tmp = virJSONValueGetString(data);
>>> +        if (tmp && VIR_STRDUP(prop->val.str, tmp) < 0)
>>
>> Lose the 'tmp' here as VIR_STRDUP will check it for NULL anyway. In
>> fact, these lines can be rewritten into a single line:
>>
>> ret = VIR_STRDUP(prop->val.str, tmp);
>>
>>> +            goto cleanup;
>>> +        if (tmp)
>>> +            ret = 0;
>>> +        break;
> 
> Not at all. Before it returns 0 if GetString returned something.
> After your change, ret will be 1 in that case, and 0 if GetString returned
> nothing.
> 
> Jan
> 

But if you take a look a few lines below, we will rewrite ret = 0
anyway. The only exception is if VIR_STRDUP fails. Which I should have
checked, right.


Michal




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