media: media-devnode: fill in media chardev kobject to ease debugging

The media chardev kobject has no name, which made it hard to
debug when kobject debugging is turned on.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/media-devnode.c b/drivers/media/media-devnode.c
index 6b87a72..61dc05f 100644 (file)
--- a/drivers/media/media-devnode.c
+++ b/drivers/media/media-devnode.c
@@ -251,6 +251,7 @@ int __must_check media_devnode_register(struct media_device *mdev,
        /* Part 2: Initialize the character device */
        cdev_init(&devnode->cdev, &media_devnode_fops);
        devnode->cdev.owner = owner;
+       kobject_set_name(&devnode->cdev.kobj, "media%d", devnode->minor);
 
        /* Part 3: Add the media and char device */
        ret = cdev_device_add(&devnode->cdev, &devnode->dev);