Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index b3e7faf..c9aebcd 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -1844,16 +1844,12 @@
 static int __init cs89x0_platform_probe(struct platform_device *pdev)
 {
 	struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
-	struct net_local *lp;
-	struct resource *mem_res;
 	void __iomem *virt_addr;
 	int err;
 
 	if (!dev)
 		return -ENOMEM;
 
-	lp = netdev_priv(dev);
-
 	dev->irq = platform_get_irq(pdev, 0);
 	if (dev->irq <= 0) {
 		dev_warn(&dev->dev, "interrupt resource missing\n");
@@ -1861,8 +1857,7 @@
 		goto free;
 	}
 
-	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	virt_addr = devm_ioremap_resource(&pdev->dev, mem_res);
+	virt_addr = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(virt_addr)) {
 		err = PTR_ERR(virt_addr);
 		goto free;