staging: rtl8188eu: simplify rtw_get_wireless_stats

Remove unnecessary temporary variables.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210605165858.3175-5-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/os_dep/ioctl_linux.c

@@ -2920,25 +2920,18 @@ static struct iw_statistics *rtw_get_wireless_stats(struct net_device *dev)
 {
 	struct adapter *padapter = netdev_priv(dev);
 	struct iw_statistics *piwstats = &padapter->iwstats;
-	int tmp_level = 0;
-	int tmp_qual = 0;
-	int tmp_noise = 0;
 
 	if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
 		piwstats->qual.qual = 0;
 		piwstats->qual.level = 0;
 		piwstats->qual.noise = 0;
 	} else {
-		tmp_level = padapter->recvpriv.signal_strength;
-		tmp_qual = padapter->recvpriv.signal_qual;
-		tmp_noise = padapter->recvpriv.noise;
-
-		piwstats->qual.level = tmp_level;
-		piwstats->qual.qual = tmp_qual;
-		piwstats->qual.noise = tmp_noise;
+		piwstats->qual.level = padapter->recvpriv.signal_strength;
+		piwstats->qual.qual = padapter->recvpriv.signal_qual;
+		piwstats->qual.noise = padapter->recvpriv.noise;
 	}
 	piwstats->qual.updated = IW_QUAL_ALL_UPDATED;/* IW_QUAL_DBM; */
-	return &padapter->iwstats;
+	return piwstats;
 }
 
 struct iw_handler_def rtw_handlers_def = {