diff --git a/pkg/device/deviceSwitch/ascendSwitch.go b/pkg/device/deviceSwitch/ascendSwitch.go
index d442665ef2d10f59edcd6b13150844a56515da7a..c86d050a1144b737840e6b2d9dead1cf2a0bdf9a 100644
--- a/pkg/device/deviceSwitch/ascendSwitch.go
+++ b/pkg/device/deviceSwitch/ascendSwitch.go
@@ -18,6 +18,7 @@ package deviceSwitch
 import (
 	"context"
 	"fmt"
+	"runtime"
 	"sync"
 	"time"
 	"unsafe"
@@ -48,12 +49,12 @@ import (
     // dcmi
     int (*lq_dcmi_init_func)();
     static int dcmi_init_lq(){
-		lq_dcmi_init_func();
+		return lq_dcmi_init_func();
 	}
 
 	int (*lq_dcmi_get_fault_info_func)(unsigned int list_len, unsigned int *event_list_len, struct LqDcmiEvent *event_list);
 	static int lq_dcmi_get_fault_info(unsigned int list_len, unsigned int *event_list_len, struct LqDcmiEvent *event_list){
-		lq_dcmi_get_fault_info_func(list_len,event_list_len,event_list);
+		return lq_dcmi_get_fault_info_func(list_len,event_list_len,event_list);
 	}
 
 	void goFaultEventHandler(struct LqDcmiEvent *fault_event);
@@ -63,7 +64,7 @@ import (
 
 	int(*lq_dcmi_subscribe_fault_event_func)(struct lq_dcmi_event_filter filter,lq_dcmi_fault_event_callback handler);
 	static int lq_dcmi_subscribe_fault_event(struct lq_dcmi_event_filter filter){
-		lq_dcmi_subscribe_fault_event_func(filter,event_handler);
+		return lq_dcmi_subscribe_fault_event_func(filter,event_handler);
 	}
 
 	 // load .so files and functions
@@ -205,6 +206,7 @@ func goFaultEventHandler(event *C.struct_LqDcmiEvent) {
 
 // GetSwitchFaultCodeByInterval start a none stop loop to query and update switch fault code
 func (sdm *SwitchDevManager) GetSwitchFaultCodeByInterval(ctx context.Context, interval time.Duration) {
+	runtime.LockOSThread()
 	for {
 		select {
 		case _, ok := <-ctx.Done():