K 10
svn:author
V 7
thompsa
K 8
svn:date
V 27
2009-11-04T21:28:50.105238Z
K 7
svn:log
V 182
MFC r198775

 Fix a corner case where usbd_transfer_drain() can return too early if the
 callback has dropped the mutex, leading to a panic.

Submitted by:	HPS
Approved by:	re (kib)

END