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mv643xx_eth: Allocate receive queue initialized to zero 

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@v3.sk>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lubomir Rintel 2013-06-18 19:32:38 +02:00 committed by David S. Miller
parent 451bff2932
commit 9fa8e980bb
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/marvell/mv643xx_eth.c
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@ -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;