From: Eric Lammerts <linux-arm@lists.lammerts.org>
Date: Wed, 20 May 2009 00:53:20 +0000 (-0400)
Subject: fix oops when using console=ttymxcN with N > 0
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=0003b795c310da83501fcf0329f6be7a0984647d;p=deliverable%2Flinux.git

fix oops when using console=ttymxcN with N > 0

Signed-off-by: Eric Lammerts <eric@lammerts.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---

diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 3f5d5a200481..738c8a5f64f2 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -1024,6 +1024,8 @@ imx_console_setup(struct console *co, char *options)
 	if (co->index == -1 || co->index >= ARRAY_SIZE(imx_ports))
 		co->index = 0;
 	sport = imx_ports[co->index];
+	if(sport == NULL)
+		return -ENODEV;
 
 	if (options)
 		uart_parse_options(options, &baud, &parity, &bits, &flow);