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At the start of dsp_work() only wait for init_completion if !init_done. This allows system suspend to re-queue dsp_work() without having to do a dummy complete() of init_completion. A dummy completion in system suspend would have to be conditional on init_done. But that would create a possible race condition between our system resume and cs35l56_init() in the corner case that we suspend right after the SoundWire core has enumerated and reported ATTACHED. It is safer and simpler to have cs35l56_init() as the only place that init_completion is completed, and dsp_work() as the only place that it is consumed. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230411152528.329803-4-rf@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.