diff --git a/code/base/test_base.cpp b/code/base/test_base.cpp
index feef4b9..d8bf27c 100644
--- a/code/base/test_base.cpp
+++ b/code/base/test_base.cpp
@@ -1435,19 +1435,24 @@ public:
 		wchar_t* sc = (wchar_t*)data;
 		std::string str;
 		size_t len = 0;
-		int ret =wchar_to_char(str, sc, len);
+		int ret =wchar_to_char(str, sc, &len);
 		if (ret == ERROR_INSUFFICIENT_BUFFER)
 		{
 			str.resize(len);
-			ret = wchar_to_char(str, sc, len);
+			ret = wchar_to_char(str, sc, &len);
 		}
 		if (str.empty())
 		{
-			helper_->test_callback(set_test_name_.c_str(), ui_helper::TEST_EVEB_GET_DEVICE_CONFIG_DEVS_MODEL, wstr.empty() ? (void*)L"设置设备类型失败" : (void*)wstr.c_str(), wstr.empty() ? false : true);
+			helper_->test_callback(set_test_name_.c_str(), ui_helper::TEST_EVENT_RESULT, (void*)L"设置设备类型失败", false);
 
 			return -1;
 		}
-		return helper_->io_control(IO_CTRL_CODE_SET_DEVS_MODEL, &str[0], str.size());
+		unsigned int l = str.size();
+		ret = helper_->io_control(IO_CTRL_CODE_SET_DEVS_MODEL, &str[0], &l);
+		if (ret != SCANNER_ERR_OK)return  ret;
+
+		helper_->test_callback(set_test_name_.c_str(), ui_helper::TEST_EVENT_RESULT, (void*)L"设置设备类型成功", false);
+		return ret;
 	}
 private: