diff --git a/common/src/ipc/standard/ipc_model_codec.cpp b/common/src/ipc/standard/ipc_model_codec.cpp
index 7829e95ab120392e29fbd24098ab762b2695c9d2..790ef906775c464b8450a96c7f73862092c8d965 100644
--- a/common/src/ipc/standard/ipc_model_codec.cpp
+++ b/common/src/ipc/standard/ipc_model_codec.cpp
@@ -380,6 +380,7 @@ bool IpcModelCodec::EncodeLocalServiceInfos(const std::vector<DMLocalServiceInfo
     bool bRet = true;
     if (num > IPC_VECTOR_MAX_SIZE) {
         LOGE("num is Invalid value, num = %{public}u", num);
+        return false;
     }
     for (uint32_t k = 0; k < num; k++) {
         DMLocalServiceInfo serviceInfo = serviceInfos[k];
diff --git a/services/implementation/src/device_manager_service_impl.cpp b/services/implementation/src/device_manager_service_impl.cpp
index fe6fe34d0a9923c95cc2d9ad38b80143170e7d90..7f64a2897ce7f91d45ce45b2f010af27078dd08b 100644
--- a/services/implementation/src/device_manager_service_impl.cpp
+++ b/services/implementation/src/device_manager_service_impl.cpp
@@ -914,6 +914,7 @@ int32_t DeviceManagerServiceImpl::TransferSrcOldAuthMgr(std::shared_ptr<Session>
     auto authMgr = GetAuthMgrByTokenId(tokenId);
     if (authMgr == nullptr) {
         LOGE("DeviceManagerServiceImpl::TransferSrcOldAuthMgr authManager is nullptr");
+        return ERR_DM_POINT_NULL;
     }
     authMgr->GetBindTargetParams(pkgName, peerTargetId, bindParam);
     int32_t authType = -1;