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[ Upstream commitaa2fbece1b] acpi_dev_get_first_match_dev() returns a refcounted ACPI device and callers are expected to balance it with acpi_dev_put(). When no companion is already attached, cs35l56_hda_read_acpi() looks up an ACPI device and sets it with ACPI_COMPANION_SET(), but leaves the lookup reference held. ACPI_COMPANION_SET() does not take ownership of that reference, so drop it with acpi_dev_put() after attaching the companion. Fixes:73cfbfa9ca("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") Signed-off-by: Shuhao Fu <sfual@cse.ust.hk> Tested-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20260428080139.GA1649104@chcpu16 Signed-off-by: Sasha Levin <sashal@kernel.org>
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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.
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