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hwmon: (w83791d) use permission-specific DEVICE_ATTR variants

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Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Julia Lawall 2016-12-22 13:05:14 +01:00 committed by Guenter Roeck
parent 7fe6d2b903
commit 8d0ec428d5
1 changed files with 11 additions and 12 deletions
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23
drivers/hwmon/w83791d.c
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@ -1041,14 +1041,14 @@ static struct sensor_device_attribute sda_temp_alarm[] = {
};
/* get realtime status of all sensors items: voltage, temp, fan */
static ssize_t show_alarms_reg(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct w83791d_data *data = w83791d_update_device(dev);
return sprintf(buf, "%u\n", data->alarms);
}
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
static DEVICE_ATTR_RO(alarms);
/* Beep control */
@ -1147,25 +1147,24 @@ static struct sensor_device_attribute sda_beep_ctrl[] = {
};
/* cpu voltage regulation information */
static ssize_t show_vid_reg(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t cpu0_vid_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct w83791d_data *data = w83791d_update_device(dev);
return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
}
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
static DEVICE_ATTR_RO(cpu0_vid);
static ssize_t show_vrm_reg(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t vrm_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct w83791d_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", data->vrm);
}
static ssize_t store_vrm_reg(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
static ssize_t vrm_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct w83791d_data *data = dev_get_drvdata(dev);
unsigned long val;
@ -1188,7 +1187,7 @@ static ssize_t store_vrm_reg(struct device *dev,
return count;
}
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
static DEVICE_ATTR_RW(vrm);
#define IN_UNIT_ATTRS(X) \
&sda_in_input[X].dev_attr.attr, \