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

[Nikolay Sivov]

On 22.07.2015 12:57, Dmitry Timoshkov wrote:
> ---
>   dlls/setupapi/devinst.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/dlls/setupapi/devinst.c b/dlls/setupapi/devinst.c
> index b084a5e..5a18937 100644
> --- a/dlls/setupapi/devinst.c
> +++ b/dlls/setupapi/devinst.c
> @@ -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?