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, 102 insertions, 71 deletions

diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index 342e9663119d..2c3293cf69d1 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -1025,6 +1025,89 @@ static int lm85_attach_adapter(struct i2c_adapter *adapter)
         return i2c_probe(adapter, &addr_data, lm85_detect);
 }
 
+static struct attribute *lm85_attributes[] = {
+        &dev_attr_fan1_input.attr,
+        &dev_attr_fan2_input.attr,
+        &dev_attr_fan3_input.attr,
+        &dev_attr_fan4_input.attr,
+        &dev_attr_fan1_min.attr,
+        &dev_attr_fan2_min.attr,
+        &dev_attr_fan3_min.attr,
+        &dev_attr_fan4_min.attr,
+        &dev_attr_pwm1.attr,
+        &dev_attr_pwm2.attr,
+        &dev_attr_pwm3.attr,
+        &dev_attr_pwm1_enable.attr,
+        &dev_attr_pwm2_enable.attr,
+        &dev_attr_pwm3_enable.attr,
+        &dev_attr_in0_input.attr,
+        &dev_attr_in1_input.attr,
+        &dev_attr_in2_input.attr,
+        &dev_attr_in3_input.attr,
+        &dev_attr_in0_min.attr,
+        &dev_attr_in1_min.attr,
+        &dev_attr_in2_min.attr,
+        &dev_attr_in3_min.attr,
+        &dev_attr_in0_max.attr,
+        &dev_attr_in1_max.attr,
+        &dev_attr_in2_max.attr,
+        &dev_attr_in3_max.attr,
+        &dev_attr_temp1_input.attr,
+        &dev_attr_temp2_input.attr,
+        &dev_attr_temp3_input.attr,
+        &dev_attr_temp1_min.attr,
+        &dev_attr_temp2_min.attr,
+        &dev_attr_temp3_min.attr,
+        &dev_attr_temp1_max.attr,
+        &dev_attr_temp2_max.attr,
+        &dev_attr_temp3_max.attr,
+        &dev_attr_vrm.attr,
+        &dev_attr_cpu0_vid.attr,
+        &dev_attr_alarms.attr,
+        &dev_attr_pwm1_auto_channels.attr,
+        &dev_attr_pwm2_auto_channels.attr,
+        &dev_attr_pwm3_auto_channels.attr,
+        &dev_attr_pwm1_auto_pwm_min.attr,
+        &dev_attr_pwm2_auto_pwm_min.attr,
+        &dev_attr_pwm3_auto_pwm_min.attr,
+        &dev_attr_pwm1_auto_pwm_minctl.attr,
+        &dev_attr_pwm2_auto_pwm_minctl.attr,
+        &dev_attr_pwm3_auto_pwm_minctl.attr,
+        &dev_attr_pwm1_auto_pwm_freq.attr,
+        &dev_attr_pwm2_auto_pwm_freq.attr,
+        &dev_attr_pwm3_auto_pwm_freq.attr,
+        &dev_attr_temp1_auto_temp_off.attr,
+        &dev_attr_temp2_auto_temp_off.attr,
+        &dev_attr_temp3_auto_temp_off.attr,
+        &dev_attr_temp1_auto_temp_min.attr,
+        &dev_attr_temp2_auto_temp_min.attr,
+        &dev_attr_temp3_auto_temp_min.attr,
+        &dev_attr_temp1_auto_temp_max.attr,
+        &dev_attr_temp2_auto_temp_max.attr,
+        &dev_attr_temp3_auto_temp_max.attr,
+        &dev_attr_temp1_auto_temp_crit.attr,
+        &dev_attr_temp2_auto_temp_crit.attr,
+        &dev_attr_temp3_auto_temp_crit.attr,
+
+        NULL
+};
+
+static const struct attribute_group lm85_group = {
+        .attrs = lm85_attributes,
+};
+
+static struct attribute *lm85_attributes_opt[] = {
+        &dev_attr_in4_input.attr,
+        &dev_attr_in4_min.attr,
+        &dev_attr_in4_max.attr,
+
+        NULL
+};
+
+static const struct attribute_group lm85_group_opt = {
+        .attrs = lm85_attributes_opt,
+};
+
 static int lm85_detect(struct i2c_adapter *adapter, int address,
                 int kind)
 {
@@ -1163,87 +1246,33 @@ static int lm85_detect(struct i2c_adapter *adapter, int address,
         lm85_init_client(new_client);
 
         /* Register sysfs hooks */
-        data->class_dev = hwmon_device_register(&new_client->dev);
-        if (IS_ERR(data->class_dev)) {
-                err = PTR_ERR(data->class_dev);
+        if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group)))
                 goto ERROR2;
-        }
-
-        device_create_file(&new_client->dev, &dev_attr_fan1_input);
-        device_create_file(&new_client->dev, &dev_attr_fan2_input);
-        device_create_file(&new_client->dev, &dev_attr_fan3_input);
-        device_create_file(&new_client->dev, &dev_attr_fan4_input);
-        device_create_file(&new_client->dev, &dev_attr_fan1_min);
-        device_create_file(&new_client->dev, &dev_attr_fan2_min);
-        device_create_file(&new_client->dev, &dev_attr_fan3_min);
-        device_create_file(&new_client->dev, &dev_attr_fan4_min);
-        device_create_file(&new_client->dev, &dev_attr_pwm1);
-        device_create_file(&new_client->dev, &dev_attr_pwm2);
-        device_create_file(&new_client->dev, &dev_attr_pwm3);
-        device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
-        device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
-        device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
-        device_create_file(&new_client->dev, &dev_attr_in0_input);
-        device_create_file(&new_client->dev, &dev_attr_in1_input);
-        device_create_file(&new_client->dev, &dev_attr_in2_input);
-        device_create_file(&new_client->dev, &dev_attr_in3_input);
-        device_create_file(&new_client->dev, &dev_attr_in0_min);
-        device_create_file(&new_client->dev, &dev_attr_in1_min);
-        device_create_file(&new_client->dev, &dev_attr_in2_min);
-        device_create_file(&new_client->dev, &dev_attr_in3_min);
-        device_create_file(&new_client->dev, &dev_attr_in0_max);
-        device_create_file(&new_client->dev, &dev_attr_in1_max);
-        device_create_file(&new_client->dev, &dev_attr_in2_max);
-        device_create_file(&new_client->dev, &dev_attr_in3_max);
-        device_create_file(&new_client->dev, &dev_attr_temp1_input);
-        device_create_file(&new_client->dev, &dev_attr_temp2_input);
-        device_create_file(&new_client->dev, &dev_attr_temp3_input);
-        device_create_file(&new_client->dev, &dev_attr_temp1_min);
-        device_create_file(&new_client->dev, &dev_attr_temp2_min);
-        device_create_file(&new_client->dev, &dev_attr_temp3_min);
-        device_create_file(&new_client->dev, &dev_attr_temp1_max);
-        device_create_file(&new_client->dev, &dev_attr_temp2_max);
-        device_create_file(&new_client->dev, &dev_attr_temp3_max);
-        device_create_file(&new_client->dev, &dev_attr_vrm);
-        device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
-        device_create_file(&new_client->dev, &dev_attr_alarms);
-        device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
-        device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
-        device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
-        device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
-        device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
-        device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
-        device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
-        device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
-        device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
-        device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
-        device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
-        device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
-        device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
-        device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
-        device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
-        device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
-        device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
-        device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
-        device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
-        device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
-        device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
-        device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
-        device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
-        device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
 
         /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
            as a sixth digital VID input rather than an analog input. */
         data->vid = lm85_read_value(new_client, LM85_REG_VID);
-        if (!(kind == adt7463 && (data->vid & 0x80))) {
-                device_create_file(&new_client->dev, &dev_attr_in4_input);
-                device_create_file(&new_client->dev, &dev_attr_in4_min);
-                device_create_file(&new_client->dev, &dev_attr_in4_max);
+        if (!(kind == adt7463 && (data->vid & 0x80)))
+                if ((err = device_create_file(&new_client->dev,
+                                        &dev_attr_in4_input))
+                 || (err = device_create_file(&new_client->dev,
+                                        &dev_attr_in4_min))
+                 || (err = device_create_file(&new_client->dev,
+                                        &dev_attr_in4_max)))
+                        goto ERROR3;
+
+        data->class_dev = hwmon_device_register(&new_client->dev);
+        if (IS_ERR(data->class_dev)) {
+                err = PTR_ERR(data->class_dev);
+                goto ERROR3;
         }
 
         return 0;
 
         /* Error out and cleanup code */
+    ERROR3:
+        sysfs_remove_group(&new_client->dev.kobj, &lm85_group);
+        sysfs_remove_group(&new_client->dev.kobj, &lm85_group_opt);
     ERROR2:
         i2c_detach_client(new_client);
     ERROR1:
@@ -1256,6 +1285,8 @@ static int lm85_detach_client(struct i2c_client *client)
 {
         struct lm85_data *data = i2c_get_clientdata(client);
         hwmon_device_unregister(data->class_dev);
+        sysfs_remove_group(&client->dev.kobj, &lm85_group);
+        sysfs_remove_group(&client->dev.kobj, &lm85_group_opt);
         i2c_detach_client(client);
         kfree(data);
         return 0;