Update the code to use devm_* API so that driver core will manage
resources.
Signed-off-by: Manish Badarkhe <badarkhe.man...@gmail.com>
---
Changes since V1:
1. Updated driver to use "devm_kzalloc" to "kstrdup".
2. Updated commit message.
Not tested on any board.
:100644 100644 5ea64b9... e9763a4... M drivers/regulator/fixed.c
drivers/regulator/fixed.c | 42 ++++++++++++------------------------------
1 file changed, 12 insertions(+), 30 deletions(-)
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index 5ea64b9..e9763a4 100644
--- 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_kzalloc(&pdev->dev,
+ strlen(config->supply_name) + 1,
+ 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_kzalloc(&pdev->dev,
+ strlen(config->input_supply) + 1,
+ 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,
--
1.7.10.4
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