linux-kernel - [ 061/101] USB: quatech2: fix close and disconnect urb handling

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Message-Id: <20121029213247.065871482@linuxfoundation.org>
Date:	Mon, 29 Oct 2012 14:35:14 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	alan@...rguk.ukuu.org.uk, Johan Hovold <jhovold@...il.com>
Subject: [ 061/101] USB: quatech2: fix close and disconnect urb handling

3.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@...il.com>

commit 8e512ab0b675da20e023439a5811e3f2554e6852 upstream.

Kill urbs unconditionally at close and disconnect.

Note that URB status is not valid outside of completion handler.

Signed-off-by: Johan Hovold <jhovold@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/serial/quatech2.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -425,8 +425,7 @@ static void qt2_close(struct usb_serial_
 	port_priv->is_open = false;
 
 	spin_lock_irqsave(&port_priv->urb_lock, flags);
-	if (port_priv->write_urb->status == -EINPROGRESS)
-		usb_kill_urb(port_priv->write_urb);
+	usb_kill_urb(port_priv->write_urb);
 	port_priv->urb_in_use = false;
 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);
 
@@ -467,8 +466,7 @@ static void qt2_disconnect(struct usb_se
 {
 	struct qt2_serial_private *serial_priv = usb_get_serial_data(serial);
 
-	if (serial_priv->read_urb->status == -EINPROGRESS)
-		usb_kill_urb(serial_priv->read_urb);
+	usb_kill_urb(serial_priv->read_urb);
 }
 
 static int get_serial_info(struct usb_serial_port *port,


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