diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/cec/cec-notifier.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/media/cec/cec-notifier.c b/drivers/media/cec/cec-notifier.c index 32a0828fbfe0..e748cd54b45d 100644 --- a/drivers/media/cec/cec-notifier.c +++ b/drivers/media/cec/cec-notifier.c @@ -32,7 +32,21 @@ struct cec_notifier { static LIST_HEAD(cec_notifiers); static DEFINE_MUTEX(cec_notifiers_lock); -struct cec_notifier * +/** + * cec_notifier_get_conn - find or create a new cec_notifier for the given + * device and connector tuple. + * @hdmi_dev: device that sends the events. + * @port_name: the connector name from which the event occurs + * + * If a notifier for device @dev already exists, then increase the refcount + * and return that notifier. + * + * If it doesn't exist, then allocate a new notifier struct and return a + * pointer to that new struct. + * + * Return NULL if the memory could not be allocated. + */ +static struct cec_notifier * cec_notifier_get_conn(struct device *hdmi_dev, const char *port_name) { struct cec_notifier *n; @@ -68,7 +82,6 @@ unlock: mutex_unlock(&cec_notifiers_lock); return n; } -EXPORT_SYMBOL_GPL(cec_notifier_get_conn); static void cec_notifier_release(struct kref *kref) { |