diff mbox series

[4.19,185/425] fotg210-udc: Remove a dubious condition leading to fotg210_done

Message ID 20210520092137.502692111@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman May 20, 2021, 9:19 a.m. UTC 
From: Fabian Vogt <fabian@ritter-vogt.de>

[ Upstream commit c7f755b243494d6043aadcd9a2989cb157958b95 ]

When the EP0 IN request was not completed but less than a packet sent,
it would complete the request successfully. That doesn't make sense
and can't really happen as fotg210_start_dma always sends
min(length, maxpkt) bytes.

Fixes: b84a8dee23fd ("usb: gadget: add Faraday fotg210_udc driver")
Signed-off-by: Fabian Vogt <fabian@ritter-vogt.de>
Link: https://lore.kernel.org/r/20210324141115.9384-4-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 | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c
index a35a55eff429..6e284332b11f 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -382,8 +382,7 @@  static void fotg210_ep0_queue(struct fotg210_ep *ep,
 	}
 	if (ep->dir_in) { /* if IN */
 		fotg210_start_dma(ep, req);
-		if ((req->req.length == req->req.actual) ||
-		    (req->req.actual < ep->ep.maxpacket))
+		if (req->req.length == req->req.actual)
 			fotg210_done(ep, req, 0);
 	} else { /* OUT */
 		u32 value = ioread32(ep->fotg210->reg + FOTG210_DMISGR0);