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94ef9b8e2b
As dev_pm_domain_attach() isn't the only way to assign PM domain pointers to devices, clearly we must allow a device to have the pointer already being assigned. For this reason, return 0 instead of -EEXIST. Reported-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.