From c5fcf01bcfceb245da575cc5bfa4391642649f2d Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 25 Jul 2016 14:53:23 -0700 Subject: [PATCH] hwmon: (lm90) Improve error handling Replace devm_add_action() with devm_add_action_or_reset(), and check its return value. Reviewed-by: Jean Delvare Signed-off-by: Guenter Roeck --- drivers/hwmon/lm90.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 7b3eedf76c62..fa15f7238a28 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -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, -- 2.30.2