pcnet32 net driver updates 1/6:

fix leak in pci memory space on machines with IOMMUs.

drivers/net/pcnet32.c

@@ -1307,6 +1307,7 @@ pcnet32_rx(struct net_device *dev)
 		    if ((newskb = dev_alloc_skb (PKT_BUF_SZ))) {
 			skb_reserve (newskb, 2);
 			skb = lp->rx_skbuff[entry];
+			pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[entry], skb->len, PCI_DMA_FROMDEVICE);
 			skb_put (skb, pkt_len);
 			lp->rx_skbuff[entry] = newskb;
 			newskb->dev = dev;