From: Fabian Vogt Date: Wed, 24 Mar 2021 14:11:10 +0000 (+0100) Subject: fotg210-udc: Fix EP0 IN requests bigger than two packets X-Git-Tag: v4.19.191~241 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5127ba81948844f978b451cad0d442b997624ffe;p=thirdparty%2Fkernel%2Fstable.git fotg210-udc: Fix EP0 IN requests bigger than two packets [ 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 Link: https://lore.kernel.org/r/20210324141115.9384-3-fabian@ritter-vogt.de Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c index d698d4ab121b9..a35a55eff429e 100644 --- a/drivers/usb/gadget/udc/fotg210-udc.c +++ b/drivers/usb/gadget/udc/fotg210-udc.c @@ -824,7 +824,7 @@ 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);