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c8b198ed31
Many of the older Cirrus devices share very similar code for reading the device ID, and frequently this code is generating cppcheck warnings such as: sound/soc/codecs/cs42l42.c:1886:6: style: Variable 'ret' is reassigned a value before the old one has been used. [redundantAssignment] ret = regmap_read(cs42l42->regmap, CS42L42_DEVID_CD, ®); Add a small helper function that older Cirrus devices can use to read the device ID, which should help correct these issues. Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20210510131357.17170-2-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@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.