ds2781_battery: Replace call to kzalloc with devm_kzalloc

With devm_kzalloc there is no need of freeing at the errorpath and also
at unregister it.

Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>

1 files changed, 4 insertions, 9 deletions

diff --git a/drivers/power/ds2781_battery.c b/drivers/power/ds2781_battery.c
index 88e304aea2dc..22b3c8c93552 100644
--- a/drivers/power/ds2781_battery.c
+++ b/drivers/power/ds2781_battery.c
@@ -755,11 +755,9 @@ static int __devinit ds2781_battery_probe(struct platform_device *pdev)
         int ret = 0;
         struct ds2781_device_info *dev_info;
 
-        dev_info = kzalloc(sizeof(*dev_info), GFP_KERNEL);
-        if (!dev_info) {
-                ret = -ENOMEM;
-                goto fail;
-        }
+        dev_info = devm_kzalloc(&pdev->dev, sizeof(*dev_info), GFP_KERNEL);
+        if (!dev_info)
+                return -ENOMEM;
 
         platform_set_drvdata(pdev, dev_info);
 
@@ -774,7 +772,7 @@ static int __devinit ds2781_battery_probe(struct platform_device *pdev)
         ret = power_supply_register(&pdev->dev, &dev_info->bat);
         if (ret) {
                 dev_err(dev_info->dev, "failed to register battery\n");
-                goto fail_free_info;
+                goto fail;
         }
 
         ret = sysfs_create_group(&dev_info->bat.dev->kobj, &ds2781_attr_group);
@@ -808,8 +806,6 @@ fail_remove_group:
         sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2781_attr_group);
 fail_unregister:
         power_supply_unregister(&dev_info->bat);
-fail_free_info:
-        kfree(dev_info);
 fail:
         return ret;
 }
@@ -823,7 +819,6 @@ static int __devexit ds2781_battery_remove(struct platform_device *pdev)
 
         power_supply_unregister(&dev_info->bat);
 
-        kfree(dev_info);
         return 0;
 }