tree 7fd138eb9dd2223451a829f8ea80f517f6888e14
parent 232c0102e84b7fce634c8902a5fa30ca2b3342ac
author Andrzej Pietrasiewicz <andrzej.p@samsung.com> 1425376325 +0100
committer Felipe Balbi <balbi@ti.com> 1426019614 -0500

usb: gadget: printer: enqueue printer's response for setup request

Function-specific setup requests should be handled in such a way, that
apart from filling in the data buffer, the requests are also actually
enqueued: if function-specific setup is called from composte_setup(),
the "usb_ep_queue()" block of code in composite_setup() is skipped.

The printer function lacks this part and it results in e.g. get device id
requests failing: the host expects some response, the device prepares it
but does not equeue it for sending to the host, so the host finally asserts
timeout.

This patch adds enqueueing the prepared responses.

Cc: <stable@vger.kernel.org> # v3.4+
Fixes: 2e87edf49227: "usb: gadget: make g_printer use composite"
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>