diff options
| -rw-r--r-- | drivers/media/rc/rc-main.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index c80816561181..d08cedb03c74 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -828,6 +828,23 @@ struct rc_filter_attribute { .mask = (_mask), \ } +static bool lirc_is_present(void) +{ +#if defined(CONFIG_LIRC_MODULE) + struct module *lirc; + + mutex_lock(&module_mutex); + lirc = find_module("lirc_dev"); + mutex_unlock(&module_mutex); + + return lirc ? true : false; +#elif defined(CONFIG_LIRC) + return true; +#else + return false; +#endif +} + /** * show_protocols() - shows the current/wakeup IR protocol(s) * @device: the device descriptor @@ -884,7 +901,7 @@ static ssize_t show_protocols(struct device *device, allowed &= ~proto_names[i].type; } - if (dev->driver_type == RC_DRIVER_IR_RAW) + if (dev->driver_type == RC_DRIVER_IR_RAW && lirc_is_present()) tmp += sprintf(tmp, "[lirc] "); if (tmp != buf) |