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hwmon: (f75375s) pwmX_mode sysfs files writable for f75375 variant
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Fix value check in set_pwm_mode(). Instead of checking for chip variant there,
make pwmX_mode sysfs nodes only writable on f75375 variant.

Signed-off-by: Riku Voipio <[email protected]>
Acked-by: Jean Delvare <[email protected]>
Signed-off-by: Mark M. Hoffman <[email protected]>
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suihkulokki authored and Mark M. Hoffman committed Nov 8, 2007
1 parent 9aa6933 commit 76e83be
Showing 1 changed file with 16 additions and 3 deletions.
19 changes: 16 additions & 3 deletions drivers/hwmon/f75375s.c
Original file line number Diff line number Diff line change
Expand Up @@ -343,7 +343,7 @@ static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
int val = simple_strtoul(buf, NULL, 10);
u8 conf = 0;

if (!(val == 0 || val == 1) || data->kind == f75373)
if (!(val == 0 || val == 1))
return -EINVAL;

mutex_lock(&data->update_lock);
Expand Down Expand Up @@ -549,13 +549,13 @@ static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
show_pwm, set_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
show_pwm_enable, set_pwm_enable, 0);
static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO|S_IWUSR,
static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
show_pwm_mode, set_pwm_mode, 0);
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
show_pwm, set_pwm, 1);
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
show_pwm_enable, set_pwm_enable, 1);
static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO|S_IWUSR,
static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
show_pwm_mode, set_pwm_mode, 1);

static struct attribute *f75375_attributes[] = {
Expand Down Expand Up @@ -656,6 +656,19 @@ static int f75375_probe(struct i2c_client *client)
if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group)))
goto exit_free;

if (data->kind == f75375) {
err = sysfs_chmod_file(&client->dev.kobj,
&sensor_dev_attr_pwm1_mode.dev_attr.attr,
S_IRUGO | S_IWUSR);
if (err)
goto exit_remove;
err = sysfs_chmod_file(&client->dev.kobj,
&sensor_dev_attr_pwm2_mode.dev_attr.attr,
S_IRUGO | S_IWUSR);
if (err)
goto exit_remove;
}

data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
Expand Down

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