setupapi: Make sure machine name is non-empty before failing

[Dmitry Timoshkov]

Juan Lang <juan.lang at gmail.com> wrote:

> +static const WCHAR emptyW[] = { 0 };
...
> -    if (MachineName != NULL)
> +    if (MachineName != NULL && strcmpW(MachineName, emptyW))

What's wrong with 'if (MachineName && *MachineName)' ?

-- 
Dmitry.