Hack for getting Bluetooth to work on 2.6.39

Hi

I recently upgraded my kernel from 2.6.38 to 2.6.39 and my bluetooth
adapter stopped working. By not working I mean that running hciconfig
hci0 up i received the following error: "Can't init device hci0:
Invalid argument (22)".  I managed to figure out that the
HCI_OP_SET_EVENT_MASK command was returning EINVAL. I commented out
the recently added call to hci_setup_event_mask in hci_event.c and now
it is working fine on 2.6.39. I know this is a hack, but wanted to
know what can be done to have a proper solution put in place.  I'm not
an expert on Bluetooth by any means but I can make the changes with
guidance or test out patches.  (By the way my adapter is a Microsoft
Wireless Transceiver for Bluetooth, the original version not 2.0.)
Also, I havent checked but this may solve the issue from the following
thread: https://lkml.org/lkml/2011/4/18/481.

Thanks
Corey