[PATCH] tty: serial: check ops before registering console

[Haojian Zhuang]

Console should be only registered after port->ops assigned. If uart console
doesn't match the current uart, port->ops keeps NULL.

Signed-off-by: Haojian Zhuang <haojian.zhuang at marvell.com>
---
 drivers/tty/serial/pxa.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index fb80fb3..b117fab 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -685,7 +685,7 @@ serial_pxa_console_setup(struct console *co, char *options)
 	if (co->index == -1 || co->index >= serial_pxa_reg.nr)
 		co->index = 0;
 	up = &serial_pxa_ports[co->index];
-	if (!up)
+	if (!up || !up->port.ops)
 		return -ENODEV;
 
 	if (options)
-- 
1.5.6.5