irda: fix read buffer overflow

io[i] is read before the bounds check on i, order should be reversed.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/irda/w83977af_ir.c b/drivers/net/irda/w83977af_ir.c
index d088383..fe4f2b2 100644 (file)
--- a/drivers/net/irda/w83977af_ir.c
+++ b/drivers/net/irda/w83977af_ir.c
@@ -115,7 +115,7 @@ static int __init w83977af_init(void)
 
        IRDA_DEBUG(0, "%s()\n", __func__ );
 
-       for (i=0; (io[i] < 2000) && (i < ARRAY_SIZE(dev_self)); i++) {
+       for (i=0; i < ARRAY_SIZE(dev_self) && io[i] < 2000; i++) {
                if (w83977af_open(i, io[i], irq[i], dma[i]) == 0)
                        return 0;
        }