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

[Dmitry Timoshkov]

Nikolay Sivov  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.