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 481ec66..100573c 100644
--- a/drivers/usb/serial/wishbone-serial.c
+++ b/drivers/usb/serial/wishbone-serial.c
@@ -43,7 +43,7 @@
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 */
}