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commit372c931319upstream. Make sure to always cancel the control URB in write() so that it can be reused after a timeout or spurious CMD_ACK. Currently any further write requests after a timeout would fail after triggering a WARN() in usb_submit_urb() when attempting to submit the already active URB. Reported-by: syzbot+e87ebe0f7913f71f2ea5@syzkaller.appspotmail.com Fixes:6bc235a2e2("USB: add driver for Meywa-Denki & Kayac YUREX") Cc: stable <stable@vger.kernel.org> # 2.6.37 Signed-off-by: Johan Hovold <johan@kernel.org> 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.
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.