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power: supply: max8997_charger: Using device managed API and remove OOM print 

Use managed resource function devm_power_supply_register instead of
power_supply_register to simplify the error path by allowing unregistering
to happen automatically on error and remove.
Removing max8997_battery_remove function also as it is now redundant.

Also removing out of memory printk message after kzalloc as there is
already enough information on failure.

Signed-off-by: Srikant Ritolia <s.ritolia@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Srikant Ritolia 2016-12-08 14:42:37 +05:30 committed by Sebastian Reichel
parent 50111d3f88
commit a50b0dbbaf
1 changed files with 2 additions and 13 deletions
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15
drivers/power/supply/max8997_charger.c
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@ -148,10 +148,8 @@ static int max8997_battery_probe(struct platform_device *pdev)
charger = devm_kzalloc(&pdev->dev, sizeof(struct charger_data),
GFP_KERNEL);
if (charger == NULL) {
dev_err(&pdev->dev, "Cannot allocate memory.\n");
if (!charger)
return -ENOMEM;
}
platform_set_drvdata(pdev, charger);
@ -161,7 +159,7 @@ static int max8997_battery_probe(struct platform_device *pdev)
psy_cfg.drv_data = charger;
charger->battery = power_supply_register(&pdev->dev,
charger->battery = devm_power_supply_register(&pdev->dev,
&max8997_battery_desc,
&psy_cfg);
if (IS_ERR(charger->battery)) {
@ -172,14 +170,6 @@ static int max8997_battery_probe(struct platform_device *pdev)
return 0;
}
static int max8997_battery_remove(struct platform_device *pdev)
{
struct charger_data *charger = platform_get_drvdata(pdev);
power_supply_unregister(charger->battery);
return 0;
}
static const struct platform_device_id max8997_battery_id[] = {
{ "max8997-battery", 0 },
{ }
@ -191,7 +181,6 @@ static struct platform_driver max8997_battery_driver = {
.name = "max8997-battery",
},
.probe = max8997_battery_probe,
.remove = max8997_battery_remove,
.id_table = max8997_battery_id,
};