serial: imx: Use NULL as the last argument of add_preferred_console()

Commit f7d2c0bbd (serial: i.MX: evaluate linux,stdout-path property) introduced
the following sparse warning:

drivers/tty/serial/imx.c:1916:77: warning: Using plain integer as NULL pointer

Pass NULL as the last argument of add_preferred_console() instead of zero.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Huang Shijie <b32955@freescale.com>

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index f5160f657d79d27b533040c2508a16536ac18dda..d9527a2326d7a784d68010bb261fa35158569293 100644 (file)
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1869,7 +1869,8 @@ static int serial_imx_probe_dt(struct imx_port *sport,
        sport->devdata = of_id->data;
 
        if (of_device_is_stdout_path(np))
-               add_preferred_console(imx_reg.cons->name, sport->port.line, 0);
+               add_preferred_console(imx_reg.cons->name, sport->port.line,
+                                     NULL);
 
        return 0;
 }