K 10
svn:author
V 8
hselasky
K 8
svn:date
V 27
2015-02-05T21:37:59.084146Z
K 7
svn:log
V 373
MFC r277136:
Resolve a special case deadlock: When two or more threads are
simultaneously detaching kernel drivers on the same USB device we can
get stuck in the "usb_wait_pending_ref_locked()" function because the
conditions needed for allowing detach are not met.

While at it ensure that "flag_iserror" is only written when "priv_mtx"
is locked, which is protecting it.

END