diff --git a/core/common/src/devmgr_service_start.c b/core/common/src/devmgr_service_start.c
index a1c78200266a2c74fae3151e5bb4fdfd5109db95..143e05cc5a59c7b737c96d70bb62b21e8a384b30 100644
--- a/core/common/src/devmgr_service_start.c
+++ b/core/common/src/devmgr_service_start.c
@@ -27,7 +27,7 @@ static void GetDeviceServiceNameByClass(DeviceClass deviceClass, struct HdfSBuf
     struct HdfDeviceInfo *deviceInfo = NULL;
     struct DevHostServiceClnt *hostClnt = NULL;
     struct DevmgrService *devMgrSvc = (struct DevmgrService *)DevmgrServiceGetInstance();
-    if (devMgrSvc == NULL) {
+    if (devMgrSvc == NULL || reply == NULL) {
         return;
     }
 
@@ -53,7 +53,6 @@ static void GetDeviceServiceNameByClass(DeviceClass deviceClass, struct HdfSBuf
 
 int DeviceManagerDispatch(struct HdfObject *stub, int code, struct HdfSBuf *data, struct HdfSBuf *reply)
 {
-    (void)reply;
     int ret = HDF_FAILURE;
     int32_t deviceClass = 0;
     const char *svcName = NULL;
diff --git a/support/posix/src/osal_time.c b/support/posix/src/osal_time.c
index ad0429d4a184ba986b13baef49384d53579c8b88..12bec4d58ffc3ed4ec476dc29702630af0dd2013 100644
--- a/support/posix/src/osal_time.c
+++ b/support/posix/src/osal_time.c
@@ -21,13 +21,13 @@ int32_t OsalGetTime(OsalTimespec *time)
     struct timeval tv;
 
     if (time == NULL) {
-        HDF_LOGE("%{public}s invalid para", __func__);
+        HDF_LOGE("%s invalid para", __func__);
         return HDF_ERR_INVALID_PARAM;
     }
 
     (void)memset_s(&tv, sizeof(tv), 0, sizeof(tv));
     if (gettimeofday(&tv, NULL) != 0) {
-        HDF_LOGE("%{public}s gettimeofday failed", __func__);
+        HDF_LOGE("%s gettimeofday failed", __func__);
         return HDF_FAILURE;
     }
     time->sec = tv.tv_sec;
@@ -41,12 +41,12 @@ int32_t OsalDiffTime(const OsalTimespec *start, const OsalTimespec *end, OsalTim
     uint32_t usec = 0;
     uint32_t sec = 0;
     if (start == NULL || end == NULL || diff == NULL) {
-        HDF_LOGE("%{public}s invalid para", __func__);
+        HDF_LOGE("%s invalid para", __func__);
         return HDF_ERR_INVALID_PARAM;
     }
 
     if (start->sec > end->sec) {
-        HDF_LOGE("%{public}s start time later then end time", __func__);
+        HDF_LOGE("%s start time later then end time", __func__);
         return HDF_ERR_INVALID_PARAM;
     }
 
@@ -74,7 +74,7 @@ void OsalMSleep(uint32_t ms)
     ts.tv_nsec = HDF_KILO_UNIT * HDF_KILO_UNIT * ((long)(ms % HDF_KILO_UNIT));
     result = nanosleep(&ts, &ts);
     if (result != 0) {
-        HDF_LOGE("%{public}s OsalMSleep failed %{public}d", __func__, errno);
+        HDF_LOGE("%s OsalMSleep failed %d", __func__, errno);
     }
 }
 
@@ -94,7 +94,7 @@ uint64_t OsalGetSysTimeMs()
 
     (void)memset_s(&tv, sizeof(tv), 0, sizeof(tv));
     if (gettimeofday(&tv, NULL) != 0) {
-        HDF_LOGE("%{public}s gettimeofday failed", __func__);
+        HDF_LOGE("%s gettimeofday failed", __func__);
         return 0;
     }