USB: serial: wishbone-serial: fix up minor sparse warning

This fixes a sparse warning where we should be using NULL instead of 0

Cc: Wesley W. Terpstra <w.terpstra@gsi.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/serial/wishbone-serial.c b/drivers/usb/serial/wishbone-serial.c
index 481ec669bf7c8309d2daa7cdb5b20d5b13f11b98..100573c6f19e79e348781198bb096414ce4d197a 100644 (file)
--- a/drivers/usb/serial/wishbone-serial.c
+++ b/drivers/usb/serial/wishbone-serial.c
@@ -43,7 +43,7 @@ static int usb_gsi_openclose(struct usb_serial_port *port, int value)
                USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
                value, /* wValue = device is open(1) or closed(0) */
                port->serial->interface->cur_altsetting->desc.bInterfaceNumber,
-               0, 0,  /* There is no data stage */
+               NULL, 0,  /* There is no data stage */
                5000); /* Timeout till operation fails */
 }