diff --git a/services/devicemanagerservice/src/authentication/dm_auth_manager.cpp b/services/devicemanagerservice/src/authentication/dm_auth_manager.cpp
index dbf9ae8ea9b78ed48987f64613cf2ff71c137a18..0f11031b5c4829619d234ceaad7f3f039bba1f6c 100644
--- a/services/devicemanagerservice/src/authentication/dm_auth_manager.cpp
+++ b/services/devicemanagerservice/src/authentication/dm_auth_manager.cpp
@@ -726,13 +726,12 @@ void DmAuthManager::UserSwitchEventCallback (void)
     jsonObj[FIELD_GROUP_TYPE] = GROUP_TYPE_PEER_TO_PEER_GROUP;
     std::string queryParams = jsonObj.dump();
     std::vector<GroupInfo> groupList;
-    int32_t ret = hiChainConnector_->GetGroupInfo(queryParams, groupList);
-    if (ret != DM_OK) {
+    if (!hiChainConnector_->GetGroupInfo(queryParams, groupList)) {
         LOGE("failed to get device join groups");
         return;
     }
     for (auto iter = groupList.begin(); iter != groupList.end(); iter++) {
-        ret = hiChainConnector_->DeleteGroup(iter->groupId);
+        int32_t ret = hiChainConnector_->DeleteGroup(iter->groupId);
         if (ret != DM_OK) {
             LOGE("fail to delete group");
         }