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c3ffdfff97
Multiple places in the thermal subsystem (most importantly, sysfs attribute callback functions) check if the given thermal zone device is still registered in order to return early in case the device_del() in thermal_zone_device_unregister() has run already. However, after thermal_zone_device_unregister() has been made wait for all of the zone-related activity to complete before returning, it is not necessary to do that any more, because all of the code holding a reference to the thermal zone device object will be waited for even if it does not do anything special to enforce this. Accordingly, drop all of the device_is_registered() checks that are now redundant and get rid of the zone locking that is not necessary any more after dropping them. 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> |
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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.