From: roel kluin <roel.kluin@gmail.com>
Date: Sun, 9 Aug 2009 04:00:25 +0000 (+0000)
Subject: zorro8390: Fix read buffer overflow in zorro8390_init_one()
X-Git-Tag: v2.6.31-rc7~27^2~25
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=be12159b24c532b4b48bdec5a543336438faa132;p=~shefty%2Frdma-dev.git

zorro8390: Fix read buffer overflow in zorro8390_init_one()

Prevent read from cards[-1] when no card was found.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/zorro8390.c b/drivers/net/zorro8390.c
index 37c84e3b8be..81c753a617a 100644
--- a/drivers/net/zorro8390.c
+++ b/drivers/net/zorro8390.c
@@ -120,6 +120,9 @@ static int __devinit zorro8390_init_one(struct zorro_dev *z,
     for (i = ARRAY_SIZE(cards)-1; i >= 0; i--)
 	if (z->id == cards[i].id)
 	    break;
+    if (i < 0)
+        return -ENODEV;
+
     board = z->resource.start;
     ioaddr = board+cards[i].offset;
     dev = alloc_ei_netdev();