trigger_name[sizeof(trigger_name) - 1] = '\0';
strncpy(trigger_name, buf, sizeof(trigger_name) - 1);
trigger_name[sizeof(trigger_name) - 1] = '\0';
strncpy(trigger_name, buf, sizeof(trigger_name) - 1);
if (!strcmp(trigger_name, "none")) {
led_trigger_remove(led_cdev);
if (!strcmp(trigger_name, "none")) {
led_trigger_remove(led_cdev);