commit 4829e7650f8a40645e4e32b26a37fb833a5e75f0
author Wolfram Sang <wsa@the-dreams.de> Fri Apr 19 21:12:17 2013 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Mon Apr 22 10:22:21 2013 -0700
tree 5f04c4596c310c031d2f4e5c9d8a673e0435483a
parent 78506f223a7bb7d47b1772592932921689adc6d8

serial: mxs: fix buffer overflow

SMATCH correctly found an off-by-one error:

drivers/tty/serial/mxs-auart.c:889 auart_console_write() error: buffer overflow 'auart_port' 5 <= 5

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/mxs-auart.c

diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index d549fe1..9d357da 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -883,7 +883,7 @@
 	unsigned int old_ctrl0, old_ctrl2;
 	unsigned int to = 1000;
 
-	if (co->index >	MXS_AUART_PORTS || co->index < 0)
+	if (co->index >= MXS_AUART_PORTS || co->index < 0)
 		return;
 
 	s = auart_port[co->index];