Thread (8 messages) flat view 8 messages, 1 author, 2021-03-24
STALE1994d LANDED

Landed in mainline as 078ba935651e on 2021-03-26.

[PATCH 2/7] fotg210-udc: Fix EP0 IN requests bigger than two packets

From: Fabian Vogt <hidden>
Date: 2021-03-24 14:12:23
Subsystem: the rest, usb subsystem · Maintainers: Linus Torvalds, Greg Kroah-Hartman

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 <redacted>
---
 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 482d867ac96f..539808f62e2e 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -834,7 +834,7 @@ 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);
-- 
2.25.1
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