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[ Upstream commit 4649620d9404d3aceb25891c24bab77143e3f21c ] Make thermal_zone_device_unregister() wait until all of the references to the given thermal zone object have been dropped and free it before returning. This guarantees that when thermal_zone_device_unregister() returns, there is no leftover activity regarding the thermal zone in question which is required by some of its callers (for instance, modular driver code that wants to know when it is safe to let the module go away). Subsequently, this will allow some confusing device_is_registered() checks to be dropped from the thermal sysfs and core code. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-and-tested-by: Lukasz Luba <lukasz.luba@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Stable-dep-of: 827a07525c09 ("thermal: core: Free tzp copy along with the thermal zone") 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.