hwmon: (lm90) Improve error handling
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>
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 7b3eedf..fa15f72 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -1551,9 +1551,7 @@
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 @@
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 @@
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,