This patch has some small UHCI bugfixes

   - on submit error, frees memory and (!) returns error code
   - root hub should disconnect only once
   - pci pool code shouldn't be given GFP_DMA
   - uses del_timer_sync(), which behaves on SMP, not del_timer()

and cleanups:

   - use container_of
   - doesn't replicate so much hcd state
   - no such status -ECONNABORTED
   - uses bus_name in procfs, not "hc0", "hc1" etc