commit 9c7514464430cb4d57182542fc15c09d07eb808d
author Thinh Nguyen <Thinh.Nguyen@synopsys.com> Thu Aug 06 19:46:35 2020 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Thu Sep 03 11:24:31 2020 +0200
tree 305a9c97cf742810d213ae40b644b01609f068f5
parent 7012bf6d6c3a56f2866c4c08539932be98b5585d

usb: dwc3: gadget: Handle ZLP for sg requests

[ Upstream commit bc9a2e226ea95e1699f7590845554de095308b75 ]

Currently dwc3 doesn't handle usb_request->zero for SG requests. This
change checks and prepares extra TRBs for the ZLP for SG requests.

Cc: <stable@vger.kernel.org> # v4.5+
Fixes: 04c03d10e507 ("usb: dwc3: gadget: handle request->zero")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>