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

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Submitter Luis Henriques
Date Feb. 26, 2013, 4:12 p.m.
Message ID <1361895166-26756-1-git-send-email-luis.henriques@canonical.com>
Download mbox | patch
Permalink /patch/223266/
State New
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Comments

Luis Henriques - Feb. 26, 2013, 4:12 p.m.
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:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

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
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

From babb637d380a45df618b3abfa6e9fc7910b36cc6 Mon Sep 17 00:00:00 2001
From: Pratyush Anand <pratyush.anand@st.com>
Date: Mon, 14 Jan 2013 15:59:38 +0530
Subject: [PATCH] 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@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
[ luis: adjust context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/usb/dwc3/gadget.c | 1 +
 1 file changed, 1 insertion(+)

--
1.8.1.2

Patch

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) &&
 				usb_endpoint_xfer_isoc(dep->endpoint.desc))
 			dep->busy_slot++;
+		req->queued = false;
 	}
 	list_del(&req->list);
 	req->trb = NULL;