id &= ~MEDIA_ENT_ID_FLAG_NEXT;
- spin_lock(&mdev->lock);
-
media_device_for_each_entity(entity, mdev) {
if (((media_entity_id(entity) == id) && !next) ||
((media_entity_id(entity) > id) && next)) {
- spin_unlock(&mdev->lock);
return entity;
}
}
- spin_unlock(&mdev->lock);
-
return NULL;
}
struct media_device *dev = to_media_device(devnode);
long ret;
+ mutex_lock(&dev->graph_mutex);
switch (cmd) {
case MEDIA_IOC_DEVICE_INFO:
ret = media_device_get_info(dev,
break;
case MEDIA_IOC_ENUM_LINKS:
- mutex_lock(&dev->graph_mutex);
ret = media_device_enum_links(dev,
(struct media_links_enum __user *)arg);
- mutex_unlock(&dev->graph_mutex);
break;
case MEDIA_IOC_SETUP_LINK:
- mutex_lock(&dev->graph_mutex);
ret = media_device_setup_link(dev,
(struct media_link_desc __user *)arg);
- mutex_unlock(&dev->graph_mutex);
break;
case MEDIA_IOC_G_TOPOLOGY:
- mutex_lock(&dev->graph_mutex);
ret = media_device_get_topology(dev,
(struct media_v2_topology __user *)arg);
- mutex_unlock(&dev->graph_mutex);
break;
default:
ret = -ENOIOCTLCMD;
}
+ mutex_unlock(&dev->graph_mutex);
return ret;
}
long ret;
switch (cmd) {
- case MEDIA_IOC_DEVICE_INFO:
- case MEDIA_IOC_ENUM_ENTITIES:
- case MEDIA_IOC_SETUP_LINK:
- case MEDIA_IOC_G_TOPOLOGY:
- return media_device_ioctl(filp, cmd, arg);
-
case MEDIA_IOC_ENUM_LINKS32:
mutex_lock(&dev->graph_mutex);
ret = media_device_enum_links32(dev,
break;
default:
- ret = -ENOIOCTLCMD;
+ return media_device_ioctl(filp, cmd, arg);
}
return ret;
if (!ida_pre_get(&mdev->entity_internal_idx, GFP_KERNEL))
return -ENOMEM;
- spin_lock(&mdev->lock);
+ mutex_lock(&mdev->graph_mutex);
ret = ida_get_new_above(&mdev->entity_internal_idx, 1,
&entity->internal_idx);
if (ret < 0) {
- spin_unlock(&mdev->lock);
+ mutex_unlock(&mdev->graph_mutex);
return ret;
}
(notify)->notify(entity, notify->notify_data);
}
- spin_unlock(&mdev->lock);
-
- mutex_lock(&mdev->graph_mutex);
if (mdev->entity_internal_idx_max
>= mdev->pm_count_walk.ent_enum.idx_max) {
struct media_entity_graph new = { .top = 0 };
if (mdev == NULL)
return;
- spin_lock(&mdev->lock);
+ mutex_lock(&mdev->graph_mutex);
__media_device_unregister_entity(entity);
- spin_unlock(&mdev->lock);
+ mutex_unlock(&mdev->graph_mutex);
}
EXPORT_SYMBOL_GPL(media_device_unregister_entity);
INIT_LIST_HEAD(&mdev->pads);
INIT_LIST_HEAD(&mdev->links);
INIT_LIST_HEAD(&mdev->entity_notify);
- spin_lock_init(&mdev->lock);
mutex_init(&mdev->graph_mutex);
ida_init(&mdev->entity_internal_idx);
int __must_check media_device_register_entity_notify(struct media_device *mdev,
struct media_entity_notify *nptr)
{
- spin_lock(&mdev->lock);
+ mutex_lock(&mdev->graph_mutex);
list_add_tail(&nptr->list, &mdev->entity_notify);
- spin_unlock(&mdev->lock);
+ mutex_unlock(&mdev->graph_mutex);
return 0;
}
EXPORT_SYMBOL_GPL(media_device_register_entity_notify);
void media_device_unregister_entity_notify(struct media_device *mdev,
struct media_entity_notify *nptr)
{
- spin_lock(&mdev->lock);
+ mutex_lock(&mdev->graph_mutex);
__media_device_unregister_entity_notify(mdev, nptr);
- spin_unlock(&mdev->lock);
+ mutex_unlock(&mdev->graph_mutex);
}
EXPORT_SYMBOL_GPL(media_device_unregister_entity_notify);
if (mdev == NULL)
return;
- spin_lock(&mdev->lock);
+ mutex_lock(&mdev->graph_mutex);
/* Check if mdev was ever registered at all */
if (!media_devnode_is_registered(&mdev->devnode)) {
- spin_unlock(&mdev->lock);
+ mutex_unlock(&mdev->graph_mutex);
return;
}
kfree(intf);
}
- spin_unlock(&mdev->lock);
+ mutex_unlock(&mdev->graph_mutex);
device_remove_file(&mdev->devnode.dev, &dev_attr_model);
+ dev_dbg(mdev->dev, "Media device unregistering\n");
media_devnode_unregister(&mdev->devnode);
-
- dev_dbg(mdev->dev, "Media device unregistered\n");
}
EXPORT_SYMBOL_GPL(media_device_unregister);