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b4e6d39817
It is not necessary to look up the thermal zone and the cooling device in the respective global lists to check whether or not they are registered. It is sufficient to check whether or not their respective list nodes are empty for this purpose. Use the above observation to simplify thermal_bind_cdev_to_trip(). In addition, eliminate an unnecessary ternary operator from it. Moreover, add lockdep_assert_held() for thermal_list_lock to it because that lock must be held by its callers when it is running. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Zhang Rui <rui.zhang@intel.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://patch.msgid.link/3324214.44csPzL39Z@rjwysocki.net
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.