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SubjectRe: [PATCH RESEND 1/3] hwmon: w83791d: convert to use devm_i2c_new_dummy_device
On Tue, Sep 03, 2019 at 08:12:54PM +0200, Wolfram Sang wrote:
> And simplify the error handling.
>
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

Applied to hwmon-next.

Thanks,
Guenter

> ---
> drivers/hwmon/w83791d.c | 32 +++++++++-----------------------
> 1 file changed, 9 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c
> index 050ad4201691..aad8d4da5802 100644
> --- a/drivers/hwmon/w83791d.c
> +++ b/drivers/hwmon/w83791d.c
> @@ -1260,7 +1260,7 @@ static int w83791d_detect_subclients(struct i2c_client *client)
> struct i2c_adapter *adapter = client->adapter;
> struct w83791d_data *data = i2c_get_clientdata(client);
> int address = client->addr;
> - int i, id, err;
> + int i, id;
> u8 val;
>
> id = i2c_adapter_id(adapter);
> @@ -1272,8 +1272,7 @@ static int w83791d_detect_subclients(struct i2c_client *client)
> "invalid subclient "
> "address %d; must be 0x48-0x4f\n",
> force_subclients[i]);
> - err = -ENODEV;
> - goto error_sc_0;
> + return -ENODEV;
> }
> }
> w83791d_write(client, W83791D_REG_I2C_SUBADDR,
> @@ -1283,29 +1282,22 @@ static int w83791d_detect_subclients(struct i2c_client *client)
>
> val = w83791d_read(client, W83791D_REG_I2C_SUBADDR);
> if (!(val & 0x08))
> - data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
> + data->lm75[0] = devm_i2c_new_dummy_device(&client->dev, adapter,
> + 0x48 + (val & 0x7));
> if (!(val & 0x80)) {
> - if ((data->lm75[0] != NULL) &&
> + if (!IS_ERR(data->lm75[0]) &&
> ((val & 0x7) == ((val >> 4) & 0x7))) {
> dev_err(&client->dev,
> "duplicate addresses 0x%x, "
> "use force_subclient\n",
> data->lm75[0]->addr);
> - err = -ENODEV;
> - goto error_sc_1;
> + return -ENODEV;
> }
> - data->lm75[1] = i2c_new_dummy(adapter,
> - 0x48 + ((val >> 4) & 0x7));
> + data->lm75[1] = devm_i2c_new_dummy_device(&client->dev, adapter,
> + 0x48 + ((val >> 4) & 0x7));
> }
>
> return 0;
> -
> -/* Undo inits in case of errors */
> -
> -error_sc_1:
> - i2c_unregister_device(data->lm75[0]);
> -error_sc_0:
> - return err;
> }
>
>
> @@ -1394,7 +1386,7 @@ static int w83791d_probe(struct i2c_client *client,
> /* Register sysfs hooks */
> err = sysfs_create_group(&client->dev.kobj, &w83791d_group);
> if (err)
> - goto error3;
> + return err;
>
> /* Check if pins of fan/pwm 4-5 are in use as GPIO */
> has_fanpwm45 = w83791d_read(client, W83791D_REG_GPIO) & 0x10;
> @@ -1419,9 +1411,6 @@ static int w83791d_probe(struct i2c_client *client,
> sysfs_remove_group(&client->dev.kobj, &w83791d_group_fanpwm45);
> error4:
> sysfs_remove_group(&client->dev.kobj, &w83791d_group);
> -error3:
> - i2c_unregister_device(data->lm75[0]);
> - i2c_unregister_device(data->lm75[1]);
> return err;
> }
>
> @@ -1432,9 +1421,6 @@ static int w83791d_remove(struct i2c_client *client)
> hwmon_device_unregister(data->hwmon_dev);
> sysfs_remove_group(&client->dev.kobj, &w83791d_group);
>
> - i2c_unregister_device(data->lm75[0]);
> - i2c_unregister_device(data->lm75[1]);
> -
> return 0;
> }
>

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