[PATCH] mv643xx_eth: Allocate receive queue initialized to zero

[Lubomir Rintel]

Zero pointer in rx_skb is how respective rxq_deinit() finds out out that a skb
slot is unallocated. If rxq_refill() fails (e.g. on OOM condition), subsequent
teardown would result in an attempt to kfree() invalid pointers.

Signed-off-by: Lubomir Rintel <lkundrak@xxxxx>
Cc: Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx

---
 drivers/net/ethernet/marvell/mv643xx_eth.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 2ad1494..d1cbfb1 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -1757,7 +1757,7 @@ static int rxq_init(struct mv643xx_eth_private *mp, int index)
 	memset(rxq->rx_desc_area, 0, size);
 
 	rxq->rx_desc_area_size = size;
-	rxq->rx_skb = kmalloc_array(rxq->rx_ring_size, sizeof(*rxq->rx_skb),
+	rxq->rx_skb = kcalloc(rxq->rx_ring_size, sizeof(*rxq->rx_skb),
 				    GFP_KERNEL);
 	if (rxq->rx_skb == NULL)
 		goto out_free;
-- 
1.7.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/