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USB: quatech2: fix close and disconnect urb handling 

Kill urbs unconditionally at close and disconnect.

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

Cc: <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2012-10-25 10:29:09 +02:00 committed by Greg Kroah-Hartman
parent 40d0473849
commit 8e512ab0b6
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/serial/quatech2.c
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@ -423,8 +423,7 @@ static void qt2_close(struct usb_serial_port *port)
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);
@ -465,8 +464,7 @@ static void qt2_disconnect(struct usb_serial *serial)
{
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,