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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-11-30 17:12:27 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-11-30 17:12:27 -0500 |
| commit | 449fa023bca5b53bd924d91a27ffd34807fdeb80 (patch) | |
| tree | 196813959c3c790a8eb2e06281e78fd316930b63 /drivers/net/ethernet/sfc/tx.c | |
| parent | e98319098885859e34c23cc8a130b6b8668a6abe (diff) | |
| download | lwn-449fa023bca5b53bd924d91a27ffd34807fdeb80.tar.gz lwn-449fa023bca5b53bd924d91a27ffd34807fdeb80.zip | |
sfc: fix race in efx_enqueue_skb_tso()
As soon as skb is pushed to hardware, it can be completed and freed, so
we should not dereference skb anymore.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/tx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/tx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c index ab4c63570023..e0e00b3d6a82 100644 --- a/drivers/net/ethernet/sfc/tx.c +++ b/drivers/net/ethernet/sfc/tx.c @@ -1173,11 +1173,11 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue, goto mem_err; } + netdev_tx_sent_queue(tx_queue->core_txq, skb->len); + /* Pass off to hardware */ efx_nic_push_buffers(tx_queue); - netdev_tx_sent_queue(tx_queue->core_txq, skb->len); - tx_queue->tso_bursts++; return NETDEV_TX_OK; |