net: Xilinx: Deletion of unnecessary checks before two function calls

The functions kfree() and of_node_put() test whether their argument is NULL
and then return immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/xilinx/ll_temac_main.c

@@ -224,8 +224,7 @@ static void temac_dma_bd_release(struct net_device *ndev)
 		dma_free_coherent(ndev->dev.parent,
 				sizeof(*lp->tx_bd_v) * TX_BD_NUM,
 				lp->tx_bd_v, lp->tx_bd_p);
-	if (lp->rx_skb)
-		kfree(lp->rx_skb);
+	kfree(lp->rx_skb);
 }
 
 /**

drivers/net/ethernet/xilinx/xilinx_emaclite.c

@@ -1200,8 +1200,7 @@ static int xemaclite_of_remove(struct platform_device *of_dev)
 
 	unregister_netdev(ndev);
 
-	if (lp->phy_node)
-		of_node_put(lp->phy_node);
+	of_node_put(lp->phy_node);
 	lp->phy_node = NULL;
 
 	xemaclite_remove_ndev(ndev);