USB: mos7840: fix urb leak at release

Make sure control urb is freed at release.

Cc: <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index d6d4eeca8c68..35ad3f5c4c0e 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -2645,6 +2645,7 @@ static void mos7840_release(struct usb_serial *serial)
                                 del_timer_sync(&mos7840_port->led_timer1);
                                 del_timer_sync(&mos7840_port->led_timer2);
                         }
+                        usb_free_urb(mos7840_port->control_urb);
                         kfree(mos7840_port->ctrl_buf);
                         kfree(mos7840_port->dr);
                         kfree(mos7840_port);