1 files changed, 7 insertions, 25 deletions

diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index fe84fbabc0d4..9823a0ea7937 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -145,7 +145,6 @@ struct net_local {
 	int force;		/* force various values; see FORCE* above. */
 	spinlock_t lock;
 	void __iomem *virt_addr;/* CS89x0 virtual address. */
-	unsigned long size;	/* Length of CS89x0 memory region. */
 #if ALLOW_DMA
 	int use_dma;		/* Flag: we're using dma */
 	int dma;		/* DMA channel */
@@ -1854,41 +1853,29 @@ static int __init cs89x0_platform_probe(struct platform_device *pdev)
 
 	lp = netdev_priv(dev);
 
-	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	dev->irq = platform_get_irq(pdev, 0);
-	if (mem_res == NULL || dev->irq <= 0) {
-		dev_warn(&dev->dev, "memory/interrupt resource missing\n");
+	if (dev->irq <= 0) {
+		dev_warn(&dev->dev, "interrupt resource missing\n");
 		err = -ENXIO;
 		goto free;
 	}
 
-	lp->size = resource_size(mem_res);
-	if (!request_mem_region(mem_res->start, lp->size, DRV_NAME)) {
-		dev_warn(&dev->dev, "request_mem_region() failed\n");
-		err = -EBUSY;
+	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	virt_addr = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(virt_addr)) {
+		err = PTR_ERR(virt_addr);
 		goto free;
 	}
 
-	virt_addr = ioremap(mem_res->start, lp->size);
-	if (!virt_addr) {
-		dev_warn(&dev->dev, "ioremap() failed\n");
-		err = -ENOMEM;
-		goto release;
-	}
-
 	err = cs89x0_probe1(dev, virt_addr, 0);
 	if (err) {
 		dev_warn(&dev->dev, "no cs8900 or cs8920 detected\n");
-		goto unmap;
+		goto free;
 	}
 
 	platform_set_drvdata(pdev, dev);
 	return 0;
 
-unmap:
-	iounmap(virt_addr);
-release:
-	release_mem_region(mem_res->start, lp->size);
 free:
 	free_netdev(dev);
 	return err;
@@ -1897,17 +1884,12 @@ free:
 static int cs89x0_platform_remove(struct platform_device *pdev)
 {
 	struct net_device *dev = platform_get_drvdata(pdev);
-	struct net_local *lp = netdev_priv(dev);
-	struct resource *mem_res;
 
 	/* This platform_get_resource() call will not return NULL, because
 	 * the same call in cs89x0_platform_probe() has returned a non NULL
 	 * value.
 	 */
-	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	unregister_netdev(dev);
-	iounmap(lp->virt_addr);
-	release_mem_region(mem_res->start, lp->size);
 	free_netdev(dev);
 	return 0;
 }