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commit21988a8e51upstream. The original intent of84d3f6b764was to delay evaluating lid state until all drivers have been loaded, with input device being opened from userspace serving as a signal for this condition. Let's ensure that state updates happen even if userspace closed (or in the future inhibited) input device. Note that if we go through suspend/resume cycle we assume the system has been fully initialized even if LID input device has not been opened yet. This has a side-effect of fixing access to input->users outside of input->mutex protections by the way of eliminating said accesses and using driver private flag. Fixes:84d3f6b764("ACPI / button: Delay acpi_lid_initialize_state() until first user space open") Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Cc: 4.15+ <stable@vger.kernel.org> # 4.15+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.
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.