[3.8.y.z extended stable] Patch "usb: gadget: composite: reset delayed_status on reset_config" 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: gadget: composite: reset delayed_status on reset_config

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 3.8.13.16.

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 3a40e3f44b7e3b4c7e8d4fd6ff836b6c576c3356 Mon Sep 17 00:00:00 2001
From: Michael Grzeschik <m.grzeschik at pengutronix.de>
Date: Mon, 11 Nov 2013 23:43:32 +0100
Subject: usb: gadget: composite: reset delayed_status on reset_config

commit 2bac51a1827a18821150ed8c9f9752c02f9c2b02 upstream.

The delayed_status value is used to keep track of status response
packets on ep0. It needs to be reset or the set_config function would
still delay the answer, if the usb device got unplugged while waiting
for setup_continue to be called.

Signed-off-by: Michael Grzeschik <m.grzeschik at pengutronix.de>
Signed-off-by: Felipe Balbi <balbi at ti.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/usb/gadget/composite.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 2a6bfe7..44fef44 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -556,6 +556,7 @@ static void reset_config(struct usb_composite_dev *cdev)
 		bitmap_zero(f->endpoints, 32);
 	}
 	cdev->config = NULL;
+	cdev->delayed_status = 0;
 }

 static int set_config(struct usb_composite_dev *cdev,
--
1.8.3.2