staging: rtl8192e: Remove checks of pointer to rtllib.. and ScanOpera..

Function pointers of rtllib_ips_leave and ScanOperationBackupHandler is
set while executing the probe function. Therefore a NULL pointer check is
not required. Remove checks as it is dead code.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/8b01cbfaad2db4666b98bfeae29dd429d8c6cd07.1677345331.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/rtl_core.c

@@ -703,8 +703,7 @@ static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
 	if (priv->up == 0)
 		return -1;
 
-	if (priv->rtllib->rtllib_ips_leave)
-		priv->rtllib->rtllib_ips_leave(dev);
+	priv->rtllib->rtllib_ips_leave(dev);
 
 	if (priv->rtllib->state == RTLLIB_LINKED)
 		rtl92e_leisure_ps_leave(dev);

drivers/staging/rtl8192e/rtl8192e/rtl_wx.c

@@ -432,15 +432,11 @@ static int _rtl92e_wx_set_scan(struct net_device *dev,
 		if (priv->rtllib->rf_power_state != rf_off) {
 			priv->rtllib->actscanning = true;
 
-			if (ieee->ScanOperationBackupHandler)
-				ieee->ScanOperationBackupHandler(ieee->dev,
-							 SCAN_OPT_BACKUP);
+			ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_BACKUP);
 
 			rtllib_start_scan_syncro(priv->rtllib, 0);
 
-			if (ieee->ScanOperationBackupHandler)
-				ieee->ScanOperationBackupHandler(ieee->dev,
-							 SCAN_OPT_RESTORE);
+			ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_RESTORE);
 		}
 		ret = 0;
 	} else {

drivers/staging/rtl8192e/rtllib_softmac.c

@@ -1572,8 +1572,7 @@ static void rtllib_associate_procedure_wq(void *data)
 				     struct rtllib_device,
 				     associate_procedure_wq);
 	rtllib_stop_scan_syncro(ieee);
-	if (ieee->rtllib_ips_leave != NULL)
-		ieee->rtllib_ips_leave(ieee->dev);
+	ieee->rtllib_ips_leave(ieee->dev);
 	mutex_lock(&ieee->wx_mutex);
 
 	if (ieee->data_hard_stop)
@@ -2850,8 +2849,7 @@ void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
 	if (shutdown) {
 		ieee->proto_started = 0;
 		ieee->proto_stoppping = 1;
-		if (ieee->rtllib_ips_leave != NULL)
-			ieee->rtllib_ips_leave(ieee->dev);
+		ieee->rtllib_ips_leave(ieee->dev);
 	}
 
 	rtllib_stop_send_beacons(ieee);

drivers/staging/rtl8192e/rtllib_softmac_wx.c

@@ -355,8 +355,7 @@ void rtllib_wx_sync_scan_wq(void *data)
 	/* wait for ps packet to be kicked out successfully */
 	msleep(50);
 
-	if (ieee->ScanOperationBackupHandler)
-		ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_BACKUP);
+	ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_BACKUP);
 
 	if (ieee->ht_info->bCurrentHTSupport && ieee->ht_info->enable_ht &&
 	    ieee->ht_info->bCurBW40MHz) {
@@ -381,8 +380,7 @@ void rtllib_wx_sync_scan_wq(void *data)
 		ieee->set_chan(ieee->dev, chan);
 	}
 
-	if (ieee->ScanOperationBackupHandler)
-		ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_RESTORE);
+	ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_RESTORE);
 
 	ieee->state = RTLLIB_LINKED;
 	ieee->link_change(ieee->dev);