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authorJean Delvare <khali@linux-fr.org>2006-09-24 21:16:40 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-28 15:31:18 -0700
commit0e39e01c908fdc498fff0d788fd7b955ab75ebb6 (patch)
tree2e117466ec9a60f3dac6d678e95af97454aa6c8c /drivers/hwmon/f71805f.c
parent681c6f7a6702f208d48b501c8829dbc03a2ca238 (diff)
downloadlinux-0e39e01c908fdc498fff0d788fd7b955ab75ebb6.tar.bz2
hwmon: Fix unchecked return status, batch 4
hwmon: Fix unchecked return status, batch 4 Fix up some hwmon drivers so that they no longer ignore return status from device_create_file(). Note: f71805f actually checked the status from device_create_file already. However it did not remove the files on device destruction. It was also an opportunity to use sysfs_create/remove_group instead of hand-made loops. This makes the changes much more important but I think the result is worth it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/hwmon/f71805f.c')
-rw-r--r--drivers/hwmon/f71805f.c324
1 files changed, 203 insertions, 121 deletions
diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c
index 678bae43716d..de17a72149d9 100644
--- a/drivers/hwmon/f71805f.c
+++ b/drivers/hwmon/f71805f.c
@@ -31,6 +31,7 @@
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
+#include <linux/sysfs.h>
#include <asm/io.h>
static struct platform_device *pdev;
@@ -593,104 +594,189 @@ static ssize_t show_name(struct device *dev, struct device_attribute
return sprintf(buf, "%s\n", data->name);
}
-static struct device_attribute f71805f_dev_attr[] = {
- __ATTR(in0_input, S_IRUGO, show_in0, NULL),
- __ATTR(in0_max, S_IRUGO| S_IWUSR, show_in0_max, set_in0_max),
- __ATTR(in0_min, S_IRUGO| S_IWUSR, show_in0_min, set_in0_min),
- __ATTR(alarms_in, S_IRUGO, show_alarms_in, NULL),
- __ATTR(alarms_fan, S_IRUGO, show_alarms_fan, NULL),
- __ATTR(alarms_temp, S_IRUGO, show_alarms_temp, NULL),
- __ATTR(name, S_IRUGO, show_name, NULL),
+static DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL);
+static DEVICE_ATTR(in0_max, S_IRUGO| S_IWUSR, show_in0_max, set_in0_max);
+static DEVICE_ATTR(in0_min, S_IRUGO| S_IWUSR, show_in0_min, set_in0_min);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
+static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR,
+ show_in_max, set_in_max, 1);
+static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR,
+ show_in_min, set_in_min, 1);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
+static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR,
+ show_in_max, set_in_max, 2);
+static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR,
+ show_in_min, set_in_min, 2);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
+static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR,
+ show_in_max, set_in_max, 3);
+static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR,
+ show_in_min, set_in_min, 3);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
+static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR,
+ show_in_max, set_in_max, 4);
+static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR,
+ show_in_min, set_in_min, 4);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
+static SENSOR_DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR,
+ show_in_max, set_in_max, 5);
+static SENSOR_DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR,
+ show_in_min, set_in_min, 5);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
+static SENSOR_DEVICE_ATTR(in6_max, S_IRUGO | S_IWUSR,
+ show_in_max, set_in_max, 6);
+static SENSOR_DEVICE_ATTR(in6_min, S_IRUGO | S_IWUSR,
+ show_in_min, set_in_min, 6);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
+static SENSOR_DEVICE_ATTR(in7_max, S_IRUGO | S_IWUSR,
+ show_in_max, set_in_max, 7);
+static SENSOR_DEVICE_ATTR(in7_min, S_IRUGO | S_IWUSR,
+ show_in_min, set_in_min, 7);
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
+static SENSOR_DEVICE_ATTR(in8_max, S_IRUGO | S_IWUSR,
+ show_in_max, set_in_max, 8);
+static SENSOR_DEVICE_ATTR(in8_min, S_IRUGO | S_IWUSR,
+ show_in_min, set_in_min, 8);
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
+ show_fan_min, set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
+ show_fan_min, set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
+ show_fan_min, set_fan_min, 2);
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
+ show_temp_max, set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp_hyst, set_temp_hyst, 0);
+static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
+ show_temp_max, set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp_hyst, set_temp_hyst, 1);
+static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR,
+ show_temp_max, set_temp_max, 2);
+static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp_hyst, set_temp_hyst, 2);
+static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2);
+
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
+static DEVICE_ATTR(alarms_in, S_IRUGO, show_alarms_in, NULL);
+static DEVICE_ATTR(alarms_fan, S_IRUGO, show_alarms_fan, NULL);
+static DEVICE_ATTR(alarms_temp, S_IRUGO, show_alarms_temp, NULL);
+
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct attribute *f71805f_attributes[] = {
+ &dev_attr_in0_input.attr,
+ &dev_attr_in0_max.attr,
+ &dev_attr_in0_min.attr,
+ &sensor_dev_attr_in1_input.dev_attr.attr,
+ &sensor_dev_attr_in1_max.dev_attr.attr,
+ &sensor_dev_attr_in1_min.dev_attr.attr,
+ &sensor_dev_attr_in2_input.dev_attr.attr,
+ &sensor_dev_attr_in2_max.dev_attr.attr,
+ &sensor_dev_attr_in2_min.dev_attr.attr,
+ &sensor_dev_attr_in3_input.dev_attr.attr,
+ &sensor_dev_attr_in3_max.dev_attr.attr,
+ &sensor_dev_attr_in3_min.dev_attr.attr,
+ &sensor_dev_attr_in4_input.dev_attr.attr,
+ &sensor_dev_attr_in4_max.dev_attr.attr,
+ &sensor_dev_attr_in4_min.dev_attr.attr,
+ &sensor_dev_attr_in5_input.dev_attr.attr,
+ &sensor_dev_attr_in5_max.dev_attr.attr,
+ &sensor_dev_attr_in5_min.dev_attr.attr,
+ &sensor_dev_attr_in6_input.dev_attr.attr,
+ &sensor_dev_attr_in6_max.dev_attr.attr,
+ &sensor_dev_attr_in6_min.dev_attr.attr,
+ &sensor_dev_attr_in7_input.dev_attr.attr,
+ &sensor_dev_attr_in7_max.dev_attr.attr,
+ &sensor_dev_attr_in7_min.dev_attr.attr,
+ &sensor_dev_attr_in8_input.dev_attr.attr,
+ &sensor_dev_attr_in8_max.dev_attr.attr,
+ &sensor_dev_attr_in8_min.dev_attr.attr,
+
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp1_type.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_max.dev_attr.attr,
+ &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp2_type.dev_attr.attr,
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_max.dev_attr.attr,
+ &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp3_type.dev_attr.attr,
+
+ &sensor_dev_attr_in0_alarm.dev_attr.attr,
+ &sensor_dev_attr_in1_alarm.dev_attr.attr,
+ &sensor_dev_attr_in2_alarm.dev_attr.attr,
+ &sensor_dev_attr_in3_alarm.dev_attr.attr,
+ &sensor_dev_attr_in4_alarm.dev_attr.attr,
+ &sensor_dev_attr_in5_alarm.dev_attr.attr,
+ &sensor_dev_attr_in6_alarm.dev_attr.attr,
+ &sensor_dev_attr_in7_alarm.dev_attr.attr,
+ &sensor_dev_attr_in8_alarm.dev_attr.attr,
+ &dev_attr_alarms_in.attr,
+ &sensor_dev_attr_temp1_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_alarm.dev_attr.attr,
+ &dev_attr_alarms_temp.attr,
+ &dev_attr_alarms_fan.attr,
+
+ &dev_attr_name.attr,
+ NULL
};
-static struct sensor_device_attribute f71805f_sensor_attr[] = {
- SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
- SENSOR_ATTR(in1_max, S_IRUGO | S_IWUSR,
- show_in_max, set_in_max, 1),
- SENSOR_ATTR(in1_min, S_IRUGO | S_IWUSR,
- show_in_min, set_in_min, 1),
- SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
- SENSOR_ATTR(in2_max, S_IRUGO | S_IWUSR,
- show_in_max, set_in_max, 2),
- SENSOR_ATTR(in2_min, S_IRUGO | S_IWUSR,
- show_in_min, set_in_min, 2),
- SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
- SENSOR_ATTR(in3_max, S_IRUGO | S_IWUSR,
- show_in_max, set_in_max, 3),
- SENSOR_ATTR(in3_min, S_IRUGO | S_IWUSR,
- show_in_min, set_in_min, 3),
- SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
- SENSOR_ATTR(in4_max, S_IRUGO | S_IWUSR,
- show_in_max, set_in_max, 4),
- SENSOR_ATTR(in4_min, S_IRUGO | S_IWUSR,
- show_in_min, set_in_min, 4),
- SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
- SENSOR_ATTR(in5_max, S_IRUGO | S_IWUSR,
- show_in_max, set_in_max, 5),
- SENSOR_ATTR(in5_min, S_IRUGO | S_IWUSR,
- show_in_min, set_in_min, 5),
- SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
- SENSOR_ATTR(in6_max, S_IRUGO | S_IWUSR,
- show_in_max, set_in_max, 6),
- SENSOR_ATTR(in6_min, S_IRUGO | S_IWUSR,
- show_in_min, set_in_min, 6),
- SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
- SENSOR_ATTR(in7_max, S_IRUGO | S_IWUSR,
- show_in_max, set_in_max, 7),
- SENSOR_ATTR(in7_min, S_IRUGO | S_IWUSR,
- show_in_min, set_in_min, 7),
- SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
- SENSOR_ATTR(in8_max, S_IRUGO | S_IWUSR,
- show_in_max, set_in_max, 8),
- SENSOR_ATTR(in8_min, S_IRUGO | S_IWUSR,
- show_in_min, set_in_min, 8),
-
- SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0),
- SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
- show_temp_max, set_temp_max, 0),
- SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
- show_temp_hyst, set_temp_hyst, 0),
- SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
- SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1),
- SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
- show_temp_max, set_temp_max, 1),
- SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
- show_temp_hyst, set_temp_hyst, 1),
- SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
- SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2),
- SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
- show_temp_max, set_temp_max, 2),
- SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR,
- show_temp_hyst, set_temp_hyst, 2),
- SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
-
- SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
- SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
- SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
- SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
- SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4),
- SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5),
- SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6),
- SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7),
- SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8),
- SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 11),
- SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 12),
- SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
+static const struct attribute_group f71805f_group = {
+ .attrs = f71805f_attributes,
};
-static struct sensor_device_attribute f71805f_fan_attr[] = {
- SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
- SENSOR_ATTR(fan1_min, S_IRUGO | S_IWUSR,
- show_fan_min, set_fan_min, 0),
- SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16),
- SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
- SENSOR_ATTR(fan2_min, S_IRUGO | S_IWUSR,
- show_fan_min, set_fan_min, 1),
- SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17),
- SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
- SENSOR_ATTR(fan3_min, S_IRUGO | S_IWUSR,
- show_fan_min, set_fan_min, 2),
- SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18),
+static struct attribute *f71805f_attributes_fan[3][4] = {
+ {
+ &sensor_dev_attr_fan1_input.dev_attr.attr,
+ &sensor_dev_attr_fan1_min.dev_attr.attr,
+ &sensor_dev_attr_fan1_alarm.dev_attr.attr,
+ NULL
+ }, {
+ &sensor_dev_attr_fan2_input.dev_attr.attr,
+ &sensor_dev_attr_fan2_min.dev_attr.attr,
+ &sensor_dev_attr_fan2_alarm.dev_attr.attr,
+ NULL
+ }, {
+ &sensor_dev_attr_fan3_input.dev_attr.attr,
+ &sensor_dev_attr_fan3_min.dev_attr.attr,
+ &sensor_dev_attr_fan3_alarm.dev_attr.attr,
+ NULL
+ }
+};
+
+static const struct attribute_group f71805f_group_fan[3] = {
+ { .attrs = f71805f_attributes_fan[0] },
+ { .attrs = f71805f_attributes_fan[1] },
+ { .attrs = f71805f_attributes_fan[2] },
};
/*
@@ -738,43 +824,35 @@ static int __devinit f71805f_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, data);
- data->class_dev = hwmon_device_register(&pdev->dev);
- if (IS_ERR(data->class_dev)) {
- err = PTR_ERR(data->class_dev);
- dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
- goto exit_free;
- }
-
/* Initialize the F71805F chip */
f71805f_init_device(data);
/* Register sysfs interface files */
- for (i = 0; i < ARRAY_SIZE(f71805f_dev_attr); i++) {
- err = device_create_file(&pdev->dev, &f71805f_dev_attr[i]);
- if (err)
- goto exit_class;
- }
- for (i = 0; i < ARRAY_SIZE(f71805f_sensor_attr); i++) {
- err = device_create_file(&pdev->dev,
- &f71805f_sensor_attr[i].dev_attr);
- if (err)
- goto exit_class;
- }
- for (i = 0; i < ARRAY_SIZE(f71805f_fan_attr); i++) {
- if (!(data->fan_enabled & (1 << (i / 3))))
+ if ((err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group)))
+ goto exit_free;
+ for (i = 0; i < 3; i++) {
+ if (!(data->fan_enabled & (1 << i)))
continue;
- err = device_create_file(&pdev->dev,
- &f71805f_fan_attr[i].dev_attr);
- if (err)
- goto exit_class;
+ if ((err = sysfs_create_group(&pdev->dev.kobj,
+ &f71805f_group_fan[i])))
+ goto exit_remove_files;
+ }
+
+ data->class_dev = hwmon_device_register(&pdev->dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
+ goto exit_remove_files;
}
return 0;
-exit_class:
- dev_err(&pdev->dev, "Sysfs interface creation failed\n");
- hwmon_device_unregister(data->class_dev);
+exit_remove_files:
+ sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
+ for (i = 0; i < 3; i++)
+ sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_fan[i]);
exit_free:
+ platform_set_drvdata(pdev, NULL);
kfree(data);
exit:
return err;
@@ -783,9 +861,13 @@ exit:
static int __devexit f71805f_remove(struct platform_device *pdev)
{
struct f71805f_data *data = platform_get_drvdata(pdev);
+ int i;
platform_set_drvdata(pdev, NULL);
hwmon_device_unregister(data->class_dev);
+ sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
+ for (i = 0; i < 3; i++)
+ sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_fan[i]);
kfree(data);
return 0;