reg: Fail if REG_DWORD is passed with no data argument.

programs/reg/reg.c

@@ -366,6 +366,12 @@ static int reg_add(WCHAR *key_name, WCHAR *value_name, BOOL value_empty,
             output_message(STRING_UNSUPPORTED_TYPE, type);
             return 1;
         }
+        if (reg_type == REG_DWORD && !data)
+        {
+             RegCloseKey(subkey);
+             output_message(STRING_INVALID_CMDLINE);
+             return 1;
+        }
 
         if (data)
             reg_data = get_regdata(data,reg_type,separator,&reg_count);

programs/reg/tests/reg.c

@@ -257,7 +257,7 @@ static void test_add(void)
     run_reg_exe("reg add HKCU\\" KEY_BASE " /v dword0 /t REG_DWORD /f /d", &r);
     ok(r == REG_EXIT_FAILURE, "got exit code %d, expected 1\n", r);
     run_reg_exe("reg add HKCU\\" KEY_BASE " /v dword1 /t REG_DWORD /f", &r);
-    todo_wine ok(r == REG_EXIT_FAILURE || broken(r == REG_EXIT_SUCCESS /* WinXP */),
+    ok(r == REG_EXIT_FAILURE || broken(r == REG_EXIT_SUCCESS /* WinXP */),
        "got exit code %d, expected 1\n", r);
     run_reg_exe("reg add HKCU\\" KEY_BASE " /v dword2 /t REG_DWORD /d zzz /f", &r);
     todo_wine ok(r == REG_EXIT_FAILURE, "got exit code %d, expected 1\n", r);