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0d7b74ef8d
The v4l2-async framework's subdev notifiers do not behave correctly if a device in the middle of the pipeline is unbound and then rebound. The v4l2-subdevices upstream from the device being rebound gets confused as they receive no notification of the device unbound and can't cleanup their state and when they are rebound to the new v4l2-subdev notifier they try to reinitialize their internal state, this may include things as trying to create links that already exists and in some cases crash the system, for example the adv748x. This should be solved in the v4l2-async framework, but as a stop-gap measure suppress the bind and unbind sysfs nodes for the rcar-csi2 driver so it can't be used to crash the system. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> 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.