hwmon: (lm75) Improve error handling

Use devm_add_action_or_reset() instead of devm_add_action(), and
check its return value.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index 547a9c8..92f9d4b 100644 (file)
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -220,7 +220,7 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
        struct device *dev = &client->dev;
        struct device *hwmon_dev;
        struct lm75_data *data;
-       int status;
+       int status, err;
        u8 set_mask, clr_mask;
        int new;
        enum lm75_type kind = id->driver_data;
@@ -331,7 +331,9 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
        if (status != new)
                i2c_smbus_write_byte_data(client, LM75_REG_CONF, new);
 
-       devm_add_action(dev, lm75_remove, data);
+       err = devm_add_action_or_reset(dev, lm75_remove, data);
+       if (err)
+               return err;
 
        dev_dbg(dev, "Config %02x\n", new);