Re: [PATCH 1/3] hwmon: (ltc4245) Use device managed function to register hwmon device

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On 02/23/2014 02:42 AM, Jean Delvare wrote:
On Sat, 15 Feb 2014 18:16:10 -0800, Guenter Roeck wrote:
This simplifies the code and reduces code size.

Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
  drivers/hwmon/ltc4245.c |   23 ++++-------------------
  1 file changed, 4 insertions(+), 19 deletions(-)

diff --git a/drivers/hwmon/ltc4245.c b/drivers/hwmon/ltc4245.c
index d4172933..2c6da5d 100644
--- a/drivers/hwmon/ltc4245.c
+++ b/drivers/hwmon/ltc4245.c
@@ -512,24 +512,10 @@ static int ltc4245_probe(struct i2c_client *client,
  	/* Add sysfs hooks */
  	ltc4245_sysfs_add_groups(data);

-	hwmon_dev = hwmon_device_register_with_groups(&client->dev,
-						      client->name, data,
-						      data->groups);
-	if (IS_ERR(hwmon_dev))
-		return PTR_ERR(hwmon_dev);
-
-	i2c_set_clientdata(client, hwmon_dev);
-
-	return 0;
-}
-
-static int ltc4245_remove(struct i2c_client *client)
-{
-	struct device *hwmon_dev = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(hwmon_dev);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
+							   client->name, data,
+							   data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
  }

  static const struct i2c_device_id ltc4245_id[] = {
@@ -544,7 +530,6 @@ static struct i2c_driver ltc4245_driver = {
  		.name	= "ltc4245",
  	},
  	.probe		= ltc4245_probe,
-	.remove		= ltc4245_remove,
  	.id_table	= ltc4245_id,
  };


Nice.

Reviewed-by: Jean Delvare <jdelvare@xxxxxxx>


Thanks!

Guenter


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