hwmon: Fix unchecked return status, batch 2

hwmon: Fix unchecked return status, batch 2

Fix up some hwmon drivers so that they no longer ignore return status
from device_create_file().

Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 24 insertions, 9 deletions

diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c
index 459cc97..dd969f1 100644
--- a/drivers/hwmon/lm77.c
+++ b/drivers/hwmon/lm77.c
@@ -212,6 +212,23 @@ static int lm77_attach_adapter(struct i2c_adapter *adapter)
 	return i2c_probe(adapter, &addr_data, lm77_detect);
 }
 
+static struct attribute *lm77_attributes[] = {
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp1_crit.attr,
+	&dev_attr_temp1_min.attr,
+	&dev_attr_temp1_max.attr,
+	&dev_attr_temp1_crit_hyst.attr,
+	&dev_attr_temp1_min_hyst.attr,
+	&dev_attr_temp1_max_hyst.attr,
+	&dev_attr_alarms.attr,
+
+	NULL
+};
+
+static const struct attribute_group lm77_group = {
+	.attrs = lm77_attributes,
+};
+
 /* This function is called by i2c_probe */
 static int lm77_detect(struct i2c_adapter *adapter, int address, int kind)
 {
@@ -317,22 +334,19 @@ static int lm77_detect(struct i2c_adapter *adapter, int address, int kind)
 	lm77_init_client(new_client);
 
 	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm77_group)))
+		goto exit_detach;
+
 	data->class_dev = hwmon_device_register(&new_client->dev);
 	if (IS_ERR(data->class_dev)) {
 		err = PTR_ERR(data->class_dev);
-		goto exit_detach;
+		goto exit_remove;
 	}
 
-	device_create_file(&new_client->dev, &dev_attr_temp1_input);
-	device_create_file(&new_client->dev, &dev_attr_temp1_crit);
-	device_create_file(&new_client->dev, &dev_attr_temp1_min);
-	device_create_file(&new_client->dev, &dev_attr_temp1_max);
-	device_create_file(&new_client->dev, &dev_attr_temp1_crit_hyst);
-	device_create_file(&new_client->dev, &dev_attr_temp1_min_hyst);
-	device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
-	device_create_file(&new_client->dev, &dev_attr_alarms);
 	return 0;
 
+exit_remove:
+	sysfs_remove_group(&new_client->dev.kobj, &lm77_group);
 exit_detach:
 	i2c_detach_client(new_client);
 exit_free:
@@ -345,6 +359,7 @@ static int lm77_detach_client(struct i2c_client *client)
 {
 	struct lm77_data *data = i2c_get_clientdata(client);
 	hwmon_device_unregister(data->class_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm77_group);
 	i2c_detach_client(client);
 	kfree(data);
 	return 0;