net: davinci_mdio: simplify IO memory mapping

Simplify IO memory mapping by using devm_ioremap_resource()
which will do all errors handling and reporting for us.

Acked-and-tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 47571980f7edbf9f66fbd87d260b63ac44479bce..34e97eca561c273030a0b5e8d7473dd3e4276798 100644 (file)
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -363,24 +363,9 @@ static int davinci_mdio_probe(struct platform_device *pdev)
        spin_lock_init(&data->lock);
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res) {
-               dev_err(dev, "could not find register map resource\n");
-               ret = -ENOENT;
-               goto bail_out;
-       }
-
-       res = devm_request_mem_region(dev, res->start, resource_size(res),
-                                           dev_name(dev));
-       if (!res) {
-               dev_err(dev, "could not allocate register map resource\n");
-               ret = -ENXIO;
-               goto bail_out;
-       }
-
-       data->regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
-       if (!data->regs) {
-               dev_err(dev, "could not map mdio registers\n");
-               ret = -ENOMEM;
+       data->regs = devm_ioremap_resource(dev, res);
+       if (IS_ERR(data->regs)) {
+               ret = PTR_ERR(data->regs);
                goto bail_out;
        }