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Dan Carpenter d4dbbbbb24 thermal/core: fix error code in __thermal_cooling_device_register()
[ Upstream commit e49a1e1ee078aee21006192076a8d93335e0daa9 ]

Return an error pointer if ->get_max_state() fails.  The current code
returns NULL which will cause an oops in the callers.

Fixes: c408b3d1d9bb ("thermal: Validate new state in cur_state_store()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Stable-dep-of: 6c54b7bc8a31 ("thermal: core: call put_device() only after device_register() fails")
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-02-01 08:34:26 +01:00
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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.