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hwmon: (lm90) Improve error handling

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Replace devm_add_action() with devm_add_action_or_reset(),
and check its return value.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2016-07-25 14:53:23 -07:00
parent be9d6374a7
commit c5fcf01bcf
1 changed files with 7 additions and 5 deletions
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12
drivers/hwmon/lm90.c
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@ -1551,9 +1551,7 @@ static int lm90_init_client(struct i2c_client *client, struct lm90_data *data)
if (config != data->config_orig) /* Only write if changed */
i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1, config);
devm_add_action(&client->dev, lm90_restore_conf, data);
return 0;
return devm_add_action_or_reset(&client->dev, lm90_restore_conf, data);
}
static bool lm90_is_tripped(struct i2c_client *client, u16 *status)
@ -1640,7 +1638,9 @@ static int lm90_probe(struct i2c_client *client,
return err;
}
devm_add_action(dev, lm90_regulator_disable, regulator);
err = devm_add_action_or_reset(dev, lm90_regulator_disable, regulator);
if (err)
return err;
data = devm_kzalloc(dev, sizeof(struct lm90_data), GFP_KERNEL);
if (!data)
@ -1696,7 +1696,9 @@ static int lm90_probe(struct i2c_client *client,
err = device_create_file(dev, &dev_attr_pec);
if (err)
return err;
devm_add_action(dev, lm90_remove_pec, dev);
err = devm_add_action_or_reset(dev, lm90_remove_pec, dev);
if (err)
return err;
}
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,