leds: triggers: simplify led_trigger_store

led_trigger_store can be significantly simplified by using sysfs_streq().

Signed-off-by Heiner Kallweit <[email protected]>

---
  drivers/leds/led-triggers.c | 13 ++-----------
  1 file changed, 2 insertions(+), 11 deletions(-)

drivers/leds/led-triggers.c +2 -11

index e1e9334..2181581 100644
@@ -34,9 +34,7 @@ ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
  		const char *buf, size_t count)
  {
  	struct led_classdev *led_cdev = dev_get_drvdata(dev);
-	char trigger_name[TRIG_NAME_MAX];
  	struct led_trigger *trig;
-	size_t len;
  	int ret = count;
 
  	mutex_lock(&led_cdev->led_access);

@@ -46,21 +44,14 @@ ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
  		goto unlock;
  	}
 
-	trigger_name[sizeof(trigger_name) - 1] = '\0';
-	strncpy(trigger_name, buf, sizeof(trigger_name) - 1);
-	len = strlen(trigger_name);
-
-	if (len && trigger_name[len - 1] == '\n')
-		trigger_name[len - 1] = '\0';
-
-	if (!strcmp(trigger_name, "none")) {
+	if (sysfs_streq(buf, "none")) {
  		led_trigger_remove(led_cdev);
  		goto unlock;
  	}
 
  	down_read(&triggers_list_lock);
  	list_for_each_entry(trig, &trigger_list, next_trig) {
-		if (!strcmp(trigger_name, trig->name)) {
+		if (sysfs_streq(buf, trig->name)) {
  			down_write(&led_cdev->trigger_lock);
  			led_trigger_set(led_cdev, trig);
  			up_write(&led_cdev->trigger_lock);