From fc16c56e694d361388bae701894fd719dbc0f7eb Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 9 Dec 2009 20:36:01 +0100 Subject: [PATCH] hwmon: (f71882fg) Fix sysfs file removal 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 Signed-off-by: Jean Delvare --- drivers/hwmon/f71882fg.c | 91 +++++++++++++++++++++++++++++----------- 1 file changed, 66 insertions(+), 25 deletions(-) diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c index 210ed6619df..3a695f06905 100644 --- a/drivers/hwmon/f71882fg.c +++ b/drivers/hwmon/f71882fg.c @@ -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); - - for (i = 0; i < ARRAY_SIZE(fxxxx_in1_alarm_attr); i++) - device_remove_file(&pdev->dev, - &fxxxx_in1_alarm_attr[i].dev_attr); - - 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 (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_fan_beep_attr); i++) - device_remove_file(&pdev->dev, - &fxxxx_fan_beep_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_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); + if (data->type == f71862fg || data->type == f71882fg) + f71882fg_remove_sysfs_files(pdev, + fxxxx_fan_beep_attr, nr_fans); - 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); -- 2.20.1