From 31279b1457f992f24eee8d45ddd647f5fce42cf6 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 17 Dec 2012 16:04:21 -0800
Subject: [PATCH] aoe: fix use after free in aoedev_by_aoeaddr()

We should return NULL on failure instead of returning a freed pointer.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Ed Cashin <ecashin@coraid.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/block/aoe/aoedev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index e66ccbf41a50..98f2965778b9 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -461,6 +461,7 @@ aoedev_by_aoeaddr(ulong maj, int min, int do_alloc)
 	d->targets = kcalloc(NTARGETS, sizeof(*d->targets), GFP_ATOMIC);
 	if (!d->targets) {
 		kfree(d);
+		d = NULL;
 		goto out;
 	}
 	d->ntargets = NTARGETS;
-- 
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