diff --git a/drivers/staging/rtl8723au/core/rtw_ap.c b/drivers/staging/rtl8723au/core/rtw_ap.c
index 207a19e4dc9f..77ee182f3e4f 100644
--- a/drivers/staging/rtl8723au/core/rtw_ap.c
+++ b/drivers/staging/rtl8723au/core/rtw_ap.c
@@ -783,7 +783,8 @@ static void start_bss_network(struct rtw_adapter *padapter, u8 *pbuf)
 	update_bmc_sta(padapter);
 }
 
-int rtw_check_beacon_data23a(struct rtw_adapter *padapter, u8 *pbuf,  int len)
+int rtw_check_beacon_data23a(struct rtw_adapter *padapter, u8 *pbuf,
+			     unsigned int len)
 {
 	int ret = _SUCCESS;
 	u8 *p;
@@ -819,7 +820,7 @@ int rtw_check_beacon_data23a(struct rtw_adapter *padapter, u8 *pbuf,  int len)
 	if (!check_fwstate(pmlmepriv, WIFI_AP_STATE))
 		return _FAIL;
 
-	if (len>MAX_IE_SZ)
+	if (len > MAX_IE_SZ)
 		return _FAIL;
 
 	pbss_network->IELength = len;
diff --git a/drivers/staging/rtl8723au/include/rtw_ap.h b/drivers/staging/rtl8723au/include/rtw_ap.h
index 7bcadff02ef9..8d9be5a36eae 100644
--- a/drivers/staging/rtl8723au/include/rtw_ap.h
+++ b/drivers/staging/rtl8723au/include/rtw_ap.h
@@ -32,7 +32,7 @@ void update_beacon23a(struct rtw_adapter *padapter, u8 ie_id, u8 *oui, u8 tx);
 void add_RATid23a(struct rtw_adapter *padapter, struct sta_info *psta, u8 rssi_level);
 void expire_timeout_chk23a(struct rtw_adapter *padapter);
 void update_sta_info23a_apmode23a(struct rtw_adapter *padapter, struct sta_info *psta);
-int rtw_check_beacon_data23a(struct rtw_adapter *padapter, u8 *pbuf,  int len);
+int rtw_check_beacon_data23a(struct rtw_adapter *padapter, u8 *pbuf, unsigned int len);
 void rtw_ap_restore_network(struct rtw_adapter *padapter);
 void rtw_set_macaddr_acl23a(struct rtw_adapter *padapter, int mode);
 int rtw_acl_add_sta23a(struct rtw_adapter *padapter, u8 *addr);