USB: mct_u232: fix broken close

Fix regression introduced by commit
f26788da3b342099d2b02d99ba1cb7f154d6ef7b (USB: serial: refactor generic
close) which broke driver close().

This driver uses non-standard semantics for the read urb which makes the
generic close function fail to kill it (the read urb is actually an
interrupt urb and therefore bulk_in size is zero).

Reported-by: Eric Shattow "Eprecocious" <lucent@gmail.com>
Tested-by: Eric Shattow "Eprecocious" <lucent@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 7aa01b9..2849f8c 100644 (file)
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -549,9 +549,12 @@ static void mct_u232_close(struct usb_serial_port *port)
 {
        dbg("%s port %d", __func__, port->number);
 
-       usb_serial_generic_close(port);
-       if (port->serial->dev)
+       if (port->serial->dev) {
+               /* shutdown our urbs */
+               usb_kill_urb(port->write_urb);
+               usb_kill_urb(port->read_urb);
                usb_kill_urb(port->interrupt_in_urb);
+       }
 } /* mct_u232_close */