usb: visor kill urb cleanup

- usb_kill_urb() cleanup

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index befe2e1..eef5eaa 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -348,8 +348,7 @@
 			 
 	/* shutdown our urbs */
 	usb_kill_urb(port->read_urb);
-	if (port->interrupt_in_urb)
-		usb_kill_urb(port->interrupt_in_urb);
+	usb_kill_urb(port->interrupt_in_urb);
 
 	/* Try to send shutdown message, if the device is gone, this will just fail. */
 	transfer_buffer =  kmalloc (0x12, GFP_KERNEL);