| From e7a01d73cb8f6dfe08ac68cc6e3e0f494f4c836f Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Wed, 24 Mar 2021 15:11:10 +0100 |
| Subject: fotg210-udc: Fix EP0 IN requests bigger than two packets |
| |
| From: Fabian Vogt <fabian@ritter-vogt.de> |
| |
| [ Upstream commit 078ba935651e149c92c41161e0322e3372cc2705 ] |
| |
| For a 134 Byte packet, it sends the first two 64 Byte packets just fine, |
| but then notice that less than a packet is remaining and call fotg210_done |
| without actually sending the rest. |
| |
| Fixes: b84a8dee23fd ("usb: gadget: add Faraday fotg210_udc driver") |
| Signed-off-by: Fabian Vogt <fabian@ritter-vogt.de> |
| Link: https://lore.kernel.org/r/20210324141115.9384-3-fabian@ritter-vogt.de |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/usb/gadget/udc/fotg210-udc.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c |
| index 39260007ebf8..345827cf1b64 100644 |
| --- a/drivers/usb/gadget/udc/fotg210-udc.c |
| +++ b/drivers/usb/gadget/udc/fotg210-udc.c |
| @@ -820,7 +820,7 @@ static void fotg210_ep0in(struct fotg210_udc *fotg210) |
| if (req->req.length) |
| fotg210_start_dma(ep, req); |
| |
| - if ((req->req.length - req->req.actual) < ep->ep.maxpacket) |
| + if (req->req.actual == req->req.length) |
| fotg210_done(ep, req, 0); |
| } else { |
| fotg210_set_cxdone(fotg210); |
| -- |
| 2.30.2 |
| |
