From: Dan Carpenter <[error27@gmail.com]>
Date: Wed, 23 Mar 2011 23:43:07 +0000 (-0700)
Subject: rapidio: fix potential null deref on failure path
X-Git-Tag: v2.6.39-rc1~122
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ad4ac17ad1e2f0bd0ce38b2585c5d7fa2b0780dc;p=platform%2Fkernel%2Flinux-stable.git

rapidio: fix potential null deref on failure path

If rio is not a switch then "rswitch" is null.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index a50391b..3a59d5f 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -517,7 +517,7 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
 	return rdev;
 
 cleanup:
-	if (rswitch->route_table)
+	if (rio_is_switch(rdev))
 		kfree(rswitch->route_table);
 
 	kfree(rdev);