[2/3] setupapi: SetupDiGetClassDevsEx returns INVALID_HANDLE_VALUE on error.

[Dmitry Timoshkov]

Nikolay Sivov <bunglehead at gmail.com> wrote:

> > @@ -2340,7 +2340,7 @@ HDEVINFO WINAPI SetupDiGetClassDevsExW(const GUID *class, PCWSTR enumstr, HWND p
> >       if (!(flags & DIGCF_ALLCLASSES) && !class)
> >       {
> >           SetLastError(ERROR_INVALID_PARAMETER);
> > -        return NULL;
> > +        return INVALID_HANDLE_VALUE;
> >       }
> >       if (flags & unsupportedFlags)
> >           WARN("unsupported flags %08x\n", flags & unsupportedFlags);
> >
> 
> How about a test for this and next one?

Both fixes are in obvious category.

SetupDiGetClassDevsA/ExA already return INVALID_HANDLE_VALUE on failure,
SetupDiGetClassDevsExW case is just a typo I believe.

Next patch just adds a check for what SetupDiCreateDeviceInfoListExW already
returns on failure.

-- 
Dmitry.