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hwmon: (f71882fg) Fix sysfs file removal

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There is a bug in the old sysfs file removal, as it uses fxxxx_in_temp_attr
to remove the in and temp sysfs attributes, but fxxxx_in_temp_attr has
temp#_alarm, where as f71858fg_in_temp_attr has temp#_max_alarm, so
the temp#_max_alarm attributes for the f71858fg never get removed.

This patch fixes this by doing the sysfs removal exactly the same way as
the creation instead of being (too) clever, this will also avoid similar
bugs in the future.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Hans de Goede 2009-12-09 20:36:01 +01:00 committed by Jean Delvare
parent b69b039922
commit fc16c56e69
1 changed files with 66 additions and 25 deletions
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91
drivers/hwmon/f71882fg.c
View file

@ -1810,6 +1810,15 @@ static int __devinit f71882fg_create_sysfs_files(struct platform_device *pdev,
return 0;
}
static void f71882fg_remove_sysfs_files(struct platform_device *pdev,
struct sensor_device_attribute_2 *attr, int count)
{
int i;
for (i = 0; i < count; i++)
device_remove_file(&pdev->dev, &attr[i].dev_attr);
}
static int __devinit f71882fg_probe(struct platform_device *pdev)
{
struct f71882fg_data *data;
@ -1974,42 +1983,74 @@ exit_free:
static int f71882fg_remove(struct platform_device *pdev)
{
int i, j;
struct f71882fg_data *data = platform_get_drvdata(pdev);
int nr_fans = (data->type == f71882fg) ? 4 : 3;
u8 start_reg = f71882fg_read8(data, F71882FG_REG_START);
platform_set_drvdata(pdev, NULL);
if (data->hwmon_dev)
hwmon_device_unregister(data->hwmon_dev);
/* Note we are not looping over all attr arrays we have as the ones
below are supersets of the ones skipped. */
device_remove_file(&pdev->dev, &dev_attr_name);
for (i = 0; i < ARRAY_SIZE(fxxxx_in_temp_attr); i++)
device_remove_file(&pdev->dev,
&fxxxx_in_temp_attr[i].dev_attr);
if (start_reg & 0x01) {
switch (data->type) {
case f71858fg:
if (data->temp_config & 0x10)
f71882fg_remove_sysfs_files(pdev,
f8000_in_temp_attr,
ARRAY_SIZE(f8000_in_temp_attr));
else
f71882fg_remove_sysfs_files(pdev,
f71858fg_in_temp_attr,
ARRAY_SIZE(f71858fg_in_temp_attr));
break;
case f71882fg:
f71882fg_remove_sysfs_files(pdev,
fxxxx_in1_alarm_attr,
ARRAY_SIZE(fxxxx_in1_alarm_attr));
/* fall through! */
case f71862fg:
f71882fg_remove_sysfs_files(pdev,
fxxxx_in_temp_attr,
ARRAY_SIZE(fxxxx_in_temp_attr));
break;
case f8000:
f71882fg_remove_sysfs_files(pdev,
f8000_in_temp_attr,
ARRAY_SIZE(f8000_in_temp_attr));
break;
}
}
for (i = 0; i < ARRAY_SIZE(fxxxx_in1_alarm_attr); i++)
device_remove_file(&pdev->dev,
&fxxxx_in1_alarm_attr[i].dev_attr);
if (start_reg & 0x02) {
f71882fg_remove_sysfs_files(pdev, &fxxxx_fan_attr[0][0],
ARRAY_SIZE(fxxxx_fan_attr[0]) * nr_fans);
for (i = 0; i < ARRAY_SIZE(fxxxx_fan_attr); i++)
for (j = 0; j < ARRAY_SIZE(fxxxx_fan_attr[0]); j++)
device_remove_file(&pdev->dev,
&fxxxx_fan_attr[i][j].dev_attr);
if (data->type == f71862fg || data->type == f71882fg)
f71882fg_remove_sysfs_files(pdev,
fxxxx_fan_beep_attr, nr_fans);
for (i = 0; i < ARRAY_SIZE(fxxxx_fan_beep_attr); i++)
device_remove_file(&pdev->dev,
&fxxxx_fan_beep_attr[i].dev_attr);
for (i = 0; i < ARRAY_SIZE(fxxxx_auto_pwm_attr); i++)
for (j = 0; j < ARRAY_SIZE(fxxxx_auto_pwm_attr[0]); j++)
device_remove_file(&pdev->dev,
&fxxxx_auto_pwm_attr[i][j].dev_attr);
for (i = 0; i < ARRAY_SIZE(f8000_auto_pwm_attr); i++)
device_remove_file(&pdev->dev,
&f8000_auto_pwm_attr[i].dev_attr);
switch (data->type) {
case f71862fg:
f71882fg_remove_sysfs_files(pdev,
f71862fg_auto_pwm_attr,
ARRAY_SIZE(f71862fg_auto_pwm_attr));
break;
case f8000:
f71882fg_remove_sysfs_files(pdev,
f8000_fan_attr,
ARRAY_SIZE(f8000_fan_attr));
f71882fg_remove_sysfs_files(pdev,
f8000_auto_pwm_attr,
ARRAY_SIZE(f8000_auto_pwm_attr));
break;
default: /* f71858fg / f71882fg / f71889fg */
f71882fg_remove_sysfs_files(pdev,
&fxxxx_auto_pwm_attr[0][0],
ARRAY_SIZE(fxxxx_auto_pwm_attr[0]) * nr_fans);
}
}
kfree(data);