Input: db9 - fix potential buffer overrun

Fixes Coverity #id 483

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
index 6f31f05..5080e15 100644
--- a/drivers/input/joystick/db9.c
+++ b/drivers/input/joystick/db9.c
@@ -584,7 +584,7 @@
 		goto err_out;
 	}
 
-	if (db9_mode[mode].bidirectional && !(pp->modes & PARPORT_MODE_TRISTATE)) {
+	if (db9_mode->bidirectional && !(pp->modes & PARPORT_MODE_TRISTATE)) {
 		printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
 		err = -EINVAL;
 		goto err_put_pp;