If au0828 gets removed, we need to remove the notifiers.
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
---
drivers/media/usb/au0828/au0828-core.c | 34 ++++++++++++++++++++++++----------
1 file changed, 24 insertions(+), 10 deletions(-)
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index 2fcd17d9b1a6..06da73f1ff22 100644
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -131,21 +131,35 @@ static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value,
return status;
}
+#ifdef CONFIG_MEDIA_CONTROLLER
+static void au0828_media_graph_notify(struct media_entity *new,
+ void *notify_data);
+#endif
+
static void au0828_unregister_media_device(struct au0828_dev *dev)
{
-
#ifdef CONFIG_MEDIA_CONTROLLER
- if (dev->media_dev &&
- media_devnode_is_registered(&dev->media_dev->devnode)) {
- /* clear enable_source, disable_source */
- dev->media_dev->source_priv = NULL;
- dev->media_dev->enable_source = NULL;
- dev->media_dev->disable_source = NULL;
+ struct media_device *mdev = dev->media_dev;
+ struct media_entity_notify *notify, *nextp;
- media_device_unregister(dev->media_dev);
- media_device_cleanup(dev->media_dev);
- dev->media_dev = NULL;
+ if (!mdev || !media_devnode_is_registered(&mdev->devnode))
+ return;
+
+ /* Remove au0828 entity_notify callbacks */
+ list_for_each_entry_safe(notify, nextp, &mdev->entity_notify, list) {
+ if (notify->notify != au0828_media_graph_notify)
+ continue;
+ media_device_unregister_entity_notify(mdev, notify);
}
+
+ /* clear enable_source, disable_source */
+ dev->media_dev->source_priv = NULL;
+ dev->media_dev->enable_source = NULL;
+ dev->media_dev->disable_source = NULL;
+
+ media_device_unregister(dev->media_dev);
+ media_device_cleanup(dev->media_dev);
+ dev->media_dev = NULL;
#endif
}
--
2.5.0
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