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[ Upstream commit8ed8528346] Previously it was possible, but a recent fix for uninitialized `ret` variable broke this behavior. v4l2_fh_is_singular_file() check is there just to determine whether the power needs to be enabled, and it's not a failure if it returns false. Fixes:ba9139116b("media: sun6i-csi: add a missing return code") Signed-off-by: Ondrej Jirman <megous@megous.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Sasha Levin <sashal@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.