Subject: [PATCH 001/001] Cleanup USB requests outside of interrupt context

From: Ross Philipson <ross.philipson@gmail.com>

The calls to free the USB requests in interrupt context was causing an
oops in dma_free_attrs. On x84 32b it does a WARN_ON(irqs_disabled()) "for
portability".

Signed-off-by: Ross Philipson <ross.philipson@gmail.com>
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Tickets: OXT-28
Update usbback-async-urb-free
Merge pull request #4 from rossphilipson/master

Cleanup USB requests outside of interrupt context