usb: Clear both buffers when clearing a control transfer TT buffer.
usb: Clear both buffers when clearing a control transfer TT buffer.

Control transfers have both IN and OUT (or SETUP) packets, so when
clearing TT buffers for a control transfer it's necessary to send
two HUB_CLEAR_TT_BUFFER requests to the hub.

Signed-off-by: William Gulland <04f665e9c504a0e15f2c23e12a5ab49cad479665@google.com>
Acked-by: Alan Stern <75ea6bb7bfc1186f92d26164de5f9268c9a45b59@rowland.harvard.edu>
Cc: stable <4fbacc2fa0ffdbb11bf1ad6925b886ebd08dd15f@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs