f4ab5d0bf9
This is only needed for drivers that do not use vb2_fop_release(). Note that vb2_queue_release() is *not* the counterpart of vb2_queue_init() as some drivers here seem to think. Also use vb2_video_unregister_device() to automatically stop streaming at unregister time for those drivers that set vdev->queue. Note that sun4i-csi didn't unregister the video device at all. That's now fixed. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.