regulator: fixed: update to devm_* API

Update the code to use devm_* API so that driver core will manage
resources.

Signed-off-by: Manish Badarkhe <badarkhe.manish@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index 5ea64b94341c5f7a926b07d83536c9d4fe0dba32..3c307d62fd31d2ef7168d6043d4489d4b12a2d72 100644 (file)
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -132,15 +132,15 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
                               GFP_KERNEL);
        if (drvdata == NULL) {
                dev_err(&pdev->dev, "Failed to allocate device data\n");
-               ret = -ENOMEM;
-               goto err;
+               return -ENOMEM;
        }
 
-       drvdata->desc.name = kstrdup(config->supply_name, GFP_KERNEL);
+       drvdata->desc.name = devm_kstrdup(&pdev->dev,
+                                         config->supply_name,
+                                         GFP_KERNEL);
        if (drvdata->desc.name == NULL) {
                dev_err(&pdev->dev, "Failed to allocate supply name\n");
-               ret = -ENOMEM;
-               goto err;
+               return -ENOMEM;
        }
        drvdata->desc.type = REGULATOR_VOLTAGE;
        drvdata->desc.owner = THIS_MODULE;
@@ -149,13 +149,13 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
        drvdata->desc.enable_time = config->startup_delay;
 
        if (config->input_supply) {
-               drvdata->desc.supply_name = kstrdup(config->input_supply,
-                                                       GFP_KERNEL);
+               drvdata->desc.supply_name = devm_kstrdup(&pdev->dev,
+                                           config->input_supply,
+                                           GFP_KERNEL);
                if (!drvdata->desc.supply_name) {
                        dev_err(&pdev->dev,
                                "Failed to allocate input supply\n");
-                       ret = -ENOMEM;
-                       goto err_name;
+                       return -ENOMEM;
                }
        }
 
@@ -186,11 +186,12 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
        cfg.driver_data = drvdata;
        cfg.of_node = pdev->dev.of_node;
 
-       drvdata->dev = regulator_register(&drvdata->desc, &cfg);
+       drvdata->dev = devm_regulator_register(&pdev->dev, &drvdata->desc,
+                                              &cfg);
        if (IS_ERR(drvdata->dev)) {
                ret = PTR_ERR(drvdata->dev);
                dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
-               goto err_input;
+               return ret;
        }
 
        platform_set_drvdata(pdev, drvdata);
@@ -199,24 +200,6 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
                drvdata->desc.fixed_uV);
 
        return 0;
-
-err_input:
-       kfree(drvdata->desc.supply_name);
-err_name:
-       kfree(drvdata->desc.name);
-err:
-       return ret;
-}
-
-static int reg_fixed_voltage_remove(struct platform_device *pdev)
-{
-       struct fixed_voltage_data *drvdata = platform_get_drvdata(pdev);
-
-       regulator_unregister(drvdata->dev);
-       kfree(drvdata->desc.supply_name);
-       kfree(drvdata->desc.name);
-
-       return 0;
 }
 
 #if defined(CONFIG_OF)
@@ -229,7 +212,6 @@ MODULE_DEVICE_TABLE(of, fixed_of_match);
 
 static struct platform_driver regulator_fixed_voltage_driver = {
        .probe          = reg_fixed_voltage_probe,
-       .remove         = reg_fixed_voltage_remove,
        .driver         = {
                .name           = "reg-fixed-voltage",
                .owner          = THIS_MODULE,