net: davinci_mdio: use devm_* api

Use devm_* API for memory allocation and to get device's clock
to simplify driver's code.

Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
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 0cca9de..4b202a2 100644 (file)
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -321,15 +321,14 @@ static int davinci_mdio_probe(struct platform_device *pdev)
        struct phy_device *phy;
        int ret, addr;
 
-       data = kzalloc(sizeof(*data), GFP_KERNEL);
+       data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
        if (!data)
                return -ENOMEM;
 
-       data->bus = mdiobus_alloc();
+       data->bus = devm_mdiobus_alloc(dev);
        if (!data->bus) {
                dev_err(dev, "failed to alloc mii bus\n");
-               ret = -ENOMEM;
-               goto bail_out;
+               return -ENOMEM;
        }
 
        if (dev->of_node) {
@@ -354,7 +353,7 @@ static int davinci_mdio_probe(struct platform_device *pdev)
 
        pm_runtime_enable(&pdev->dev);
        pm_runtime_get_sync(&pdev->dev);
-       data->clk = clk_get(&pdev->dev, "fck");
+       data->clk = devm_clk_get(dev, "fck");
        if (IS_ERR(data->clk)) {
                dev_err(dev, "failed to get device clock\n");
                ret = PTR_ERR(data->clk);
@@ -406,16 +405,9 @@ static int davinci_mdio_probe(struct platform_device *pdev)
        return 0;
 
 bail_out:
-       if (data->bus)
-               mdiobus_free(data->bus);
-
-       if (data->clk)
-               clk_put(data->clk);
        pm_runtime_put_sync(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
 
-       kfree(data);
-
        return ret;
 }
 
@@ -423,18 +415,12 @@ static int davinci_mdio_remove(struct platform_device *pdev)
 {
        struct davinci_mdio_data *data = platform_get_drvdata(pdev);
 
-       if (data->bus) {
+       if (data->bus)
                mdiobus_unregister(data->bus);
-               mdiobus_free(data->bus);
-       }
 
-       if (data->clk)
-               clk_put(data->clk);
        pm_runtime_put_sync(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
 
-       kfree(data);
-
        return 0;
 }