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w83791d: Fix unchecked return status

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Replace all unchecked calls to device_create_file with a single group
declaration, and one call to sysfs_create_group, and check that one
return status. Also remove the files on device detach.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off by: Charles Spirakis <bezaur@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jim Cromie 2006-10-08 21:56:29 +02:00 committed by Greg Kroah-Hartman
parent 73ed9a86cd
commit 34fc921a25
1 changed files with 56 additions and 29 deletions
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85
drivers/hwmon/w83791d.c
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@ -746,6 +746,52 @@ static ssize_t store_vrm_reg(struct device *dev,
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
#define IN_UNIT_ATTRS(X) \
&sda_in_input[X].dev_attr.attr, \
&sda_in_min[X].dev_attr.attr, \
&sda_in_max[X].dev_attr.attr
#define FAN_UNIT_ATTRS(X) \
&sda_fan_input[X].dev_attr.attr, \
&sda_fan_min[X].dev_attr.attr, \
&sda_fan_div[X].dev_attr.attr
#define TEMP_UNIT_ATTRS(X) \
&sda_temp_input[X].dev_attr.attr, \
&sda_temp_max[X].dev_attr.attr, \
&sda_temp_max_hyst[X].dev_attr.attr
static struct attribute *w83791d_attributes[] = {
IN_UNIT_ATTRS(0),
IN_UNIT_ATTRS(1),
IN_UNIT_ATTRS(2),
IN_UNIT_ATTRS(3),
IN_UNIT_ATTRS(4),
IN_UNIT_ATTRS(5),
IN_UNIT_ATTRS(6),
IN_UNIT_ATTRS(7),
IN_UNIT_ATTRS(8),
IN_UNIT_ATTRS(9),
FAN_UNIT_ATTRS(0),
FAN_UNIT_ATTRS(1),
FAN_UNIT_ATTRS(2),
FAN_UNIT_ATTRS(3),
FAN_UNIT_ATTRS(4),
TEMP_UNIT_ATTRS(0),
TEMP_UNIT_ATTRS(1),
TEMP_UNIT_ATTRS(2),
&dev_attr_alarms.attr,
&sda_beep_ctrl[0].dev_attr.attr,
&sda_beep_ctrl[1].dev_attr.attr,
&dev_attr_cpu0_vid.attr,
&dev_attr_vrm.attr,
NULL
};
static const struct attribute_group w83791d_group = {
.attrs = w83791d_attributes,
};
/* This function is called when:
* w83791d_driver is inserted (when this module is loaded), for each
available adapter
@ -967,41 +1013,20 @@ static int w83791d_detect(struct i2c_adapter *adapter, int address, int kind)
}
/* Register sysfs hooks */
if ((err = sysfs_create_group(&client->dev.kobj, &w83791d_group)))
goto error3;
/* Everything is ready, now register the working device */
data->class_dev = hwmon_device_register(dev);
if (IS_ERR(data->class_dev)) {
err = PTR_ERR(data->class_dev);
goto error3;
goto error4;
}
for (i = 0; i < NUMBER_OF_VIN; i++) {
device_create_file(dev, &sda_in_input[i].dev_attr);
device_create_file(dev, &sda_in_min[i].dev_attr);
device_create_file(dev, &sda_in_max[i].dev_attr);
}
for (i = 0; i < NUMBER_OF_FANIN; i++) {
device_create_file(dev, &sda_fan_input[i].dev_attr);
device_create_file(dev, &sda_fan_div[i].dev_attr);
device_create_file(dev, &sda_fan_min[i].dev_attr);
}
for (i = 0; i < NUMBER_OF_TEMPIN; i++) {
device_create_file(dev, &sda_temp_input[i].dev_attr);
device_create_file(dev, &sda_temp_max[i].dev_attr);
device_create_file(dev, &sda_temp_max_hyst[i].dev_attr);
}
device_create_file(dev, &dev_attr_alarms);
for (i = 0; i < ARRAY_SIZE(sda_beep_ctrl); i++) {
device_create_file(dev, &sda_beep_ctrl[i].dev_attr);
}
device_create_file(dev, &dev_attr_cpu0_vid);
device_create_file(dev, &dev_attr_vrm);
return 0;
error4:
sysfs_remove_group(&client->dev.kobj, &w83791d_group);
error3:
if (data->lm75[0] != NULL) {
i2c_detach_client(data->lm75[0]);
@ -1025,8 +1050,10 @@ static int w83791d_detach_client(struct i2c_client *client)
int err;
/* main client */
if (data)
if (data) {
hwmon_device_unregister(data->class_dev);
sysfs_remove_group(&client->dev.kobj, &w83791d_group);
}
if ((err = i2c_detach_client(client)))
return err;