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The reference taken to the sync provider OF node when probing the platform device is currently only dropped if the set_sync() callback fails during DAI probe. Make sure to drop the reference on platform probe failures (e.g. probe deferral) and on driver unbind. This also avoids a potential use-after-free in case the DAI is ever reprobed without first rebinding the platform driver. Fixes:5914d285f6("ASoC: stm32: sai: Add synchronization support") Fixes:d4180b4c02("ASoC: stm32: sai: fix set_sync service") Cc: Olivier Moysan <olivier.moysan@st.com> Cc: stable@vger.kernel.org # 4.16:d4180b4c02Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: olivier moysan <olivier.moysan@foss.st.com> Link: https://patch.msgid.link/20251124104908.15754-4-johan@kernel.org 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 reStructuredText 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.