From 8f5a3188fbd13fdd5525fc6177cb19bf3996ee99 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 13 Aug 2015 15:22:24 -0300 Subject: [PATCH] [media] media: add messages when media device gets (un)registered We can only free the media device after being sure that no graph object is used. In order to help tracking it, let's add debug messages that will print when the media controller gets registered or unregistered. Acked-by: Hans Verkuil Reviewed-by: Javier Martinez Canillas Signed-off-by: Mauro Carvalho Chehab --- drivers/media/media-device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c index 065f6f08da37..0f3844470147 100644 --- a/drivers/media/media-device.c +++ b/drivers/media/media-device.c @@ -359,6 +359,7 @@ static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); static void media_device_release(struct media_devnode *mdev) { + dev_dbg(mdev->parent, "Media device released\n"); } /** @@ -397,6 +398,8 @@ int __must_check __media_device_register(struct media_device *mdev, return ret; } + dev_dbg(mdev->dev, "Media device registered\n"); + return 0; } EXPORT_SYMBOL_GPL(__media_device_register); @@ -416,6 +419,8 @@ void media_device_unregister(struct media_device *mdev) device_remove_file(&mdev->devnode.dev, &dev_attr_model); media_devnode_unregister(&mdev->devnode); + + dev_dbg(mdev->dev, "Media device unregistered\n"); } EXPORT_SYMBOL_GPL(media_device_unregister);