ds2760_battery: Use devm_kzalloc()

Use devm_kzalloc() to make cleanup paths more simple.

Signed-off-by: Jingoo Han <[e-mail]>
Signed-off-by: Anton Vorontsov <[e-mail]>

drivers/power/ds2760_battery.c

···
 	int retval = 0;
 	struct ds2760_device_info *di;
 
-	di = kzalloc(sizeof(*di), GFP_KERNEL);
+	di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
 	if (!di) {
 		retval = -ENOMEM;
 		goto di_alloc_failed;
···
 workqueue_failed:
 	power_supply_unregister(&di->bat);
 batt_failed:
-	kfree(di);
 di_alloc_failed:
 success:
 	return retval;
···
 	cancel_delayed_work_sync(&di->set_charged_work);
 	destroy_workqueue(di->monitor_wqueue);
 	power_supply_unregister(&di->bat);
-	kfree(di);
 
 	return 0;
 }