max17042_battery: Use devm_kzalloc() where applicable

This allows us to simplify probe and exit function.

Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>

diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c
index bd88deb..872e9b4 100644 (file)
--- a/drivers/power/max17042_battery.c
+++ b/drivers/power/max17042_battery.c
@@ -619,7 +619,7 @@ static int __devinit max17042_probe(struct i2c_client *client,
        if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
                return -EIO;
 
-       chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+       chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
        if (!chip)
                return -ENOMEM;
 
@@ -676,10 +676,8 @@ static int __devinit max17042_probe(struct i2c_client *client,
        }
 
        ret = power_supply_register(&client->dev, &chip->battery);
-       if (ret) {
+       if (ret)
                dev_err(&client->dev, "failed: power supply register\n");
-               kfree(chip);
-       }
        return ret;
 }
 
@@ -688,7 +686,6 @@ static int __devexit max17042_remove(struct i2c_client *client)
        struct max17042_chip *chip = i2c_get_clientdata(client);
 
        power_supply_unregister(&chip->battery);
-       kfree(chip);
        return 0;
 }