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authorMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-08-13 15:22:24 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2016-01-11 12:18:42 -0200
commit8f5a3188fbd13fdd5525fc6177cb19bf3996ee99 (patch)
tree978a65a684973cb4acedcd47b30387dd9aef3932
parent6b6a42780597028135f82c96e42c6d2bcd83fbae (diff)
downloadop-kernel-dev-8f5a3188fbd13fdd5525fc6177cb19bf3996ee99.zip
op-kernel-dev-8f5a3188fbd13fdd5525fc6177cb19bf3996ee99.tar.gz
[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 <hans.verkuil@cisco.com> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
-rw-r--r--drivers/media/media-device.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index 065f6f0..0f38444 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);
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