usb: inf-loop of async xfers possible, hack fix, #47
usb: inf-loop of async xfers possible, hack fix, #47

Hack fix to break out of infinite loop of async xfers,
prints nasty warnings on exiting, so will be obvious to
fix (hopefully :)

Signed-off-by: Harry van Haaren <6e1296516ee88185cd60d9725251227ece1af74d@gmail.com>

openAVproductions/openAV-Ctlra