net: macb: Use devm_ioremap()

Use the device managed version of ioremap to remap IO memory,
simplifying error paths.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 62aa136889a4..436aecc31732 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -17,6 +17,7 @@
 #include <linux/circ_buf.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
 #include <linux/netdevice.h>
@@ -1816,7 +1817,7 @@ static int __init macb_probe(struct platform_device *pdev)
                 goto err_out_disable_pclk;
         }
 
-        bp->regs = ioremap(regs->start, resource_size(regs));
+        bp->regs = devm_ioremap(&pdev->dev, regs->start, resource_size(regs));
         if (!bp->regs) {
                 dev_err(&pdev->dev, "failed to map registers, aborting.\n");
                 err = -ENOMEM;
@@ -1828,7 +1829,7 @@ static int __init macb_probe(struct platform_device *pdev)
         if (err) {
                 dev_err(&pdev->dev, "Unable to request IRQ %d (error %d)\n",
                         dev->irq, err);
-                goto err_out_iounmap;
+                goto err_out_disable_clocks;
         }
 
         dev->netdev_ops = &macb_netdev_ops;
@@ -1916,8 +1917,6 @@ err_out_unregister_netdev:
         unregister_netdev(dev);
 err_out_free_irq:
         free_irq(dev->irq, dev);
-err_out_iounmap:
-        iounmap(bp->regs);
 err_out_disable_clocks:
         clk_disable_unprepare(bp->hclk);
 err_out_disable_pclk:
@@ -1944,7 +1943,6 @@ static int __exit macb_remove(struct platform_device *pdev)
                 mdiobus_free(bp->mii_bus);
                 unregister_netdev(dev);
                 free_irq(dev->irq, dev);
-                iounmap(bp->regs);
                 clk_disable_unprepare(bp->hclk);
                 clk_disable_unprepare(bp->pclk);
                 free_netdev(dev);