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

[Kamal Mostafa]

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 cleanup

to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.4.

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

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From db47a57a53909747295c67bc507e2d0b7ccaf7f8 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: usb: dwc3: gadget: req->queued must be forced to false in cleanup

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>
Signed-off-by: Kamal Mostafa <kamal 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 3c0351a..be13492 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -256,6 +256,7 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 		if (((dep->busy_slot & DWC3_TRB_MASK) == DWC3_TRB_NUM - 1) &&
 				usb_endpoint_xfer_isoc(dep->endpoint.desc))
 			dep->busy_slot++;
+		req->queued = false;
 	}
 	list_del(&req->list);
 	req->trb = NULL;
--
1.8.1.2