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09264098ff
input_flush_device() should only be called once the struct file is being released and no open descriptors remain, but evdev_flush() was calling it whenever a file descriptor was closed. This caused uploaded force-feedback effects to be erased when a process did a dup()/close() on the event FD, called system(), etc. Call input_flush_device() from evdev_release() instead. Reported-by: Mathieu Maret <mathieu.maret@gmail.com> Signed-off-by: Brendan Shanks <bshanks@codeweavers.com> Link: https://lore.kernel.org/r/20200421231003.7935-1-bshanks@codeweavers.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.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.
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.