hwmon: (sht15) use permission-specific DEVICE_ATTR variants

Use DEVICE_ATTR_RO for read-only 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>

drivers/hwmon/sht15.c

@@ -769,7 +769,7 @@ static ssize_t sht15_show_humidity(struct device *dev,
 	return ret ? ret : sprintf(buf, "%d\n", sht15_calc_humid(data));
 }
 
-static ssize_t show_name(struct device *dev,
+static ssize_t name_show(struct device *dev,
 			 struct device_attribute *attr,
 			 char *buf)
 {
@@ -787,7 +787,7 @@ static SENSOR_DEVICE_ATTR(humidity1_fault, S_IRUGO, sht15_show_status, NULL,
 			  SHT15_STATUS_LOW_BATTERY);
 static SENSOR_DEVICE_ATTR(heater_enable, S_IRUGO | S_IWUSR, sht15_show_status,
 			  sht15_store_heater, SHT15_STATUS_HEATER);
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+static DEVICE_ATTR_RO(name);
 static struct attribute *sht15_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_humidity1_input.dev_attr.attr,