Signed-off-by: Troy Kisky <troy.ki...@boundarydevices.com> --- drivers/net/ethernet/freescale/fec_main.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index bc084ad9..da2e3c530 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -403,6 +403,7 @@ dma_mapping_error: bdp = fec_enet_get_nextdesc(bdp, &txq->bd); dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr, bdp->cbd_datlen, DMA_TO_DEVICE); + bdp->cbd_bufaddr = 0; } return ERR_PTR(-ENOMEM); } @@ -788,11 +789,18 @@ static void fec_enet_bd_init(struct net_device *dev) for (i = 0; i < txq->bd.ring_size; i++) { /* Initialize the BD for every fragment in the page. */ + if (bdp->cbd_bufaddr) { + if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr)) + dma_unmap_single(&fep->pdev->dev, + bdp->cbd_bufaddr, + bdp->cbd_datlen, + DMA_TO_DEVICE); + bdp->cbd_bufaddr = 0; + } if (txq->tx_skbuff[i]) { dev_kfree_skb_any(txq->tx_skbuff[i]); txq->tx_skbuff[i] = NULL; } - bdp->cbd_bufaddr = 0; bdp->cbd_sc = (bdp == txq->bd.last) ? BD_SC_WRAP : 0; bdp = fec_enet_get_nextdesc(bdp, &txq->bd); } @@ -2635,6 +2643,7 @@ static void fec_enet_free_buffers(struct net_device *ndev) bdp->cbd_bufaddr, FEC_ENET_RX_FRSIZE - fep->rx_align, DMA_FROM_DEVICE); + bdp->cbd_bufaddr = 0; dev_kfree_skb(skb); } bdp = fec_enet_get_nextdesc(bdp, &rxq->bd); @@ -2645,11 +2654,20 @@ static void fec_enet_free_buffers(struct net_device *ndev) txq = fep->tx_queue[q]; bdp = txq->bd.base; for (i = 0; i < txq->bd.ring_size; i++) { + if (bdp->cbd_bufaddr) { + if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr)) + dma_unmap_single(&fep->pdev->dev, + bdp->cbd_bufaddr, + bdp->cbd_datlen, + DMA_TO_DEVICE); + bdp->cbd_bufaddr = 0; + } kfree(txq->tx_bounce[i]); txq->tx_bounce[i] = NULL; skb = txq->tx_skbuff[i]; txq->tx_skbuff[i] = NULL; dev_kfree_skb(skb); + bdp = fec_enet_get_nextdesc(bdp, &txq->bd); } } } -- 2.5.0