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[ Upstream commitde37458f8c] The set-led command is eight bytes long and starts with a command byte followed by six bytes of RGB data and ends with a byte encoding a frequency (see iuu_led() and iuu_rgbf_fill_buffer()). The led activity helpers had a few long-standing bugs which corrupted the command packets by inserting a second command byte and thereby offsetting the RGB data and dropping the frequency in non-xmas mode. In xmas mode, a related off-by-one error left the frequency field uninitialised. Fixes:60a8fc0171("USB: add iuu_phoenix driver") Reported-by: George Spelvin <lkml@sdf.org> Link: https://lore.kernel.org/r/20200716085056.31471-1-johan@kernel.org Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@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.