diff --git a/kernel/api/storage.go b/kernel/api/storage.go
index e20530216..e8ea3e6ca 100644
--- a/kernel/api/storage.go
+++ b/kernel/api/storage.go
@@ -122,12 +122,7 @@ func getCriteria(c *gin.Context) {
 	ret := gulu.Ret.NewResult()
 	defer c.JSON(http.StatusOK, ret)
 
-	data, err := model.GetCriteria()
-	if nil != err {
-		ret.Code = -1
-		ret.Msg = err.Error()
-		return
-	}
+	data := model.GetCriteria()
 	ret.Data = data
 }
 
diff --git a/kernel/model/storage.go b/kernel/model/storage.go
index 813bb72dc..059a48bf4 100644
--- a/kernel/model/storage.go
+++ b/kernel/model/storage.go
@@ -233,10 +233,11 @@ func SetCriterion(criterion *Criterion) (err error) {
 	return
 }
 
-func GetCriteria() (ret []*Criterion, err error) {
+func GetCriteria() (ret []*Criterion) {
 	criteriaLock.Lock()
 	defer criteriaLock.Unlock()
-	return getCriteria()
+	ret, _ = getCriteria()
+	return
 }
 
 func setCriteria(criteria []*Criterion) (err error) {