ntdll: Don't allow setting a zero process affinity.

dlls/ntdll/process.c

@@ -404,6 +404,8 @@ NTSTATUS WINAPI NtSetInformationProcess(
         if (ProcessInformationLength != sizeof(DWORD_PTR)) return STATUS_INVALID_PARAMETER;
         if (*(PDWORD_PTR)ProcessInformation & ~(((DWORD_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1))
             return STATUS_INVALID_PARAMETER;
+        if (!*(PDWORD_PTR)ProcessInformation)
+            return STATUS_INVALID_PARAMETER;
         SERVER_START_REQ( set_process_info )
         {
             req->handle   = wine_server_obj_handle( ProcessHandle );

dlls/ntdll/tests/info.c

@@ -908,7 +908,6 @@ static void test_affinity(void)
 
     proc_affinity = 0;
     status = pNtSetInformationProcess( GetCurrentProcess(), ProcessAffinityMask, &proc_affinity, sizeof(proc_affinity) );
-    todo_wine
     ok( status == STATUS_INVALID_PARAMETER,
         "Expected STATUS_INVALID_PARAMETER, got %08x\n", status);