[ 3.5.y.z extended stable ] Patch "usb: dwc3: gadget: req->queued must be forced to false in" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Tue Feb 26 16:12:46 UTC 2013

This is a note to let you know that I have just added a patch titled

    usb: dwc3: gadget: req->queued must be forced to false in

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



>From babb637d380a45df618b3abfa6e9fc7910b36cc6 Mon Sep 17 00:00:00 2001
From: Pratyush Anand <pratyush.anand at st.com>
Date: Mon, 14 Jan 2013 15:59:38 +0530
Subject: [PATCH] usb: dwc3: gadget: req->queued must be forced to false in

commit c9fda7d6f62a6520e01652d370654c5657d3c1a1 upstream.

I am not sure, why I found it during SG debugging. But, I noticed that
even when req_queued list was empty, there were some request in
request_list having queued flag true. If I run test second time, it
first removes all request from request_list and hence busy_slot was
wrongly incremented.

Signed-off-by: Pratyush Anand <pratyush.anand at st.com>
Signed-off-by: Felipe Balbi <balbi at ti.com>
[ luis: adjust context ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
 drivers/usb/dwc3/gadget.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 9ba53de..fae7885 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -231,6 +231,7 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 		if (((dep->busy_slot & DWC3_TRB_MASK) == DWC3_TRB_NUM - 1) &&
+		req->queued = false;
 	req->trb = NULL;

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