nuport-mac: unmap the DMA buffer when closing device

SVN-Revision: 33068
2012-08-08 21:51:09 +00:00 · 2012-08-08 21:51:09 +00:00 · 35351a28b9
parent b77494fa2f
commit 35351a28b9
1 changed files with 4 additions and 0 deletions
--- a/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c
+++ b/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c
@ -688,6 +688,10 @@ static void nuport_mac_free_rx_ring(struct nuport_mac_priv *priv)
 		dev_kfree_skb(priv->rx_skb[i]);
 		priv->rx_skb[i] = NULL;
 	}
+
+	if (priv->rx_addr)
+		dma_unmap_single(&priv->pdev->dev, priv->rx_addr, RX_ALLOC_SIZE,
+				DMA_TO_DEVICE);
 }

 static void nuport_mac_read_mac_address(struct net_device *dev)