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372c931319
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: 6bc235a2e24a ("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>