[ 3.5.yuz extended stable ] Patch "USB: quatech2: fix memory leak in error path" has been added to staging queue

Herton Ronaldo Krzesinski herton.krzesinski at canonical.com
Thu Nov 22 04:49:32 UTC 2012

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

    USB: quatech2: fix memory leak in error path

to the linux-3.5.y-queue branch of the 3.5.yuz 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.yuz tree, see



>From 21c54f67678307093acd2254502f8f2c31c53e6f Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold at gmail.com>
Date: Thu, 25 Oct 2012 10:29:07 +0200
Subject: [PATCH] USB: quatech2: fix memory leak in error path

commit b8a0055050b6294826171641b182c09f78f4cc63 upstream.

Fix memory leak in attach error path where the read urb was never freed.

Cc: Bill Pemberton <wfp5p at virginia.edu>
Signed-off-by: Johan Hovold <jhovold at gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski at canonical.com>
 drivers/usb/serial/quatech2.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c
index 8dd88eb..d170271 100644
--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -829,6 +829,7 @@ static int qt2_setup_urbs(struct usb_serial *serial)
 	if (status != 0) {
 			"%s - submit read urb failed %i\n", __func__, status);
+		usb_free_urb(serial_priv->read_urb);
 		return status;


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