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[ Upstream commit2a9a72e290] After calling dmaengine_submit(), the submitted transfer descriptor belongs to the DMA engine. Pointer to that descriptor may no longer be valid after the call and should be tested before awaiting transfer completion. Reported-by: Kevin Tian <kevin.tian@intel.com> Suggested-by: Dave Jiang <dave.jiang@intel.com> Fixes:4fac9b31d0("ASoC: Intel: Add catpt base members") Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://lore.kernel.org/r/20211216115743.2130622-2-cezary.rojewski@intel.com Signed-off-by: Mark Brown <broonie@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.