[PATCH 3/8] setupapi: Implement SetupDiOpenDeviceInfoW().

[Zhiyi Zhang]

On 3/15/19 12:37 AM, Zebediah Figura wrote:
> On 3/14/19 11:32 AM, Zhiyi Zhang wrote:
>> +    /* Check class GUID */
>> +    size = sizeof(classW);
>> +    if (RegQueryValueExW(instanceKey, ClassGUID, NULL, NULL, (BYTE *)classW, &size))
>> +        goto done;
>> +
>> +    classW[37] = 0;
>> +    UuidFromStringW(&classW[1], &guid);
>> +
>> +    if (!IsEqualGUID(&guid, &set->ClassGuid))
>> +    {
>> +        error = ERROR_CLASS_MISMATCH;
>> +        goto done;
>> +    }
>
> What if set->ClassGuid is GUID_NULL? I suspect this should match SetupDiCreateDeviceInfo().
>
Thanks. I've sent in a new version handling GUID_NULL.