调整start流程

hgdriver/hgdev/hg_scanner_302.cpp

@@ -1684,18 +1684,16 @@ void hg_scanner_302::thread_handle_usb_read(void)
 
 int hg_scanner_302::start(void)
 {
-	split3399_ = 0 ;
+	
 	bool	handled = false;
 	int		ret = try_third_app_handle_start(handled),
 			val = 0;
-
-	user_cancel_ = false;
-
 	// for third-sane-app invoking, added on 2022-05-19
 	if (handled)
 		return ret;
 
 	user_cancel_ = false;
+	split3399_ = 0;
 	cb_mem_ = true;
 	VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "scanner status: 0x%x\n", get_status());
 	notify_ui_working_status(STATU_DESC_PREPARE_START);

hgdriver/hgdev/hg_scanner_400.cpp

@@ -309,12 +309,11 @@ int hg_scanner_400::start(void)
 	int		ret = try_third_app_handle_start(handled),
 	 			count = -1;
 
-				user_cancel_ = false;
-
 	// for third-sane-app invoking, added on 2022-05-19
 	if (handled)
 		return ret;
 
+	user_cancel_ = false;
 	ret = writedown_device_configuration(true);
 	if (ret == SCANNER_ERR_OK)
 		writedown_image_configuration();

hgdriver/hgdev/hg_scanner_402.cpp

@@ -1688,17 +1688,16 @@ void hg_scanner_402::thread_handle_usb_read(void)
 
 int hg_scanner_402::start(void)
 {
-	split3399_ = 0 ;
+
 	bool	handled = false;
 	int		ret = try_third_app_handle_start(handled),
 			val = 0;
 
-	user_cancel_ = false;
-
 	// for third-sane-app invoking, added on 2022-05-19
 	if (handled)
 		return ret;
 
+	split3399_ = 0;
 	user_cancel_ = false;
 	cb_mem_ = true;
 	VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "scanner status: 0x%x\n", get_status());

hgdriver/hgdev/hg_scanner_439.cpp

@@ -1598,17 +1598,16 @@ void hg_scanner_439::thread_handle_usb_read(void)
 
 int hg_scanner_439::start(void)
 {
-	split3399_ = 0;
 	bool	handled = false;
 	int		ret = try_third_app_handle_start(handled),
 		val = 0;
 
-	user_cancel_ = false;
 
 	// for third-sane-app invoking, added on 2022-05-19
 	if (handled)
 		return ret;
 
+	split3399_ = 0;
 	user_cancel_ = false;
 	cb_mem_ = true;
 	VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "scanner status: 0x%x\n", get_status());