smc911x: pass struct device to DMA API functions

The DMA API generally relies on a struct device to work properly, and
only barely works without one for legacy reasons.  Pass the easily
available struct device from the platform_device to remedy this.

Note that smc911x apparently is a PIO chip with an external DMA
handshake, and we probably use the wrong device here.  But at least
it matches the mapping side, which apparently works or at least
worked in the not too distant past.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index 8355dfbb8ec3c71d01d6da5d6baad00829edf13a..b550e624500dfe5181bd67852f5786ea6a46684f 100644 (file)
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -1188,7 +1188,7 @@ smc911x_tx_dma_irq(void *data)
 
        DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "TX DMA irq handler\n");
        BUG_ON(skb == NULL);
-       dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
+       dma_unmap_single(lp->dev, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
        netif_trans_update(dev);
        dev_kfree_skb_irq(skb);
        lp->current_tx_skb = NULL;
@@ -1219,7 +1219,7 @@ smc911x_rx_dma_irq(void *data)
 
        DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
        DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev, "RX DMA irq handler\n");
-       dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
+       dma_unmap_single(lp->dev, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
        BUG_ON(skb == NULL);
        lp->current_rx_skb = NULL;
        PRINT_PKT(skb->data, skb->len);