From 0ea05ce7fd0c1286759933933764aacd12f6ac3a Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sun, 12 Sep 2010 12:06:00 -0700
Subject: [PATCH] bna: Check for NULL before deref in bnad_cb_tx_cleanup
Reported-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/bna/bnad.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/bna/bnad.c b/drivers/net/bna/bnad.c
index 8158fb93cb4c..e380c0e88f4f 100644
--- a/drivers/net/bna/bnad.c
+++ b/drivers/net/bna/bnad.c
@@ -867,11 +867,12 @@ bnad_cb_tx_resume(struct bnad *bnad, struct bna_tcb *tcb)
static void
bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tcb *tcb)
{
- struct bnad_unmap_q *unmap_q = tcb->unmap_q;
+ struct bnad_unmap_q *unmap_q;
if (!tcb || (!tcb->unmap_q))
return;
+ unmap_q = tcb->unmap_q;
if (!unmap_q->unmap_array)
return;
--
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