Merge branch 'master' into for-next

Conflicts:
	drivers/devfreq/exynos4_bus.c

Sync with Linus' tree to be able to apply patches that are
against newer code (mvneta).

1 files changed, 38 insertions, 3 deletions

diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index 876beceaf2d7..87fa5919c455 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -1821,6 +1821,11 @@ static int nv_alloc_rx(struct net_device *dev)
 							     skb->data,
 							     skb_tailroom(skb),
 							     PCI_DMA_FROMDEVICE);
+			if (pci_dma_mapping_error(np->pci_dev,
+						  np->put_rx_ctx->dma)) {
+				kfree_skb(skb);
+				goto packet_dropped;
+			}
 			np->put_rx_ctx->dma_len = skb_tailroom(skb);
 			np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma);
 			wmb();
@@ -1830,6 +1835,7 @@ static int nv_alloc_rx(struct net_device *dev)
 			if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
 				np->put_rx_ctx = np->first_rx_ctx;
 		} else {
+packet_dropped:
 			u64_stats_update_begin(&np->swstats_rx_syncp);
 			np->stat_rx_dropped++;
 			u64_stats_update_end(&np->swstats_rx_syncp);
@@ -1856,6 +1862,11 @@ static int nv_alloc_rx_optimized(struct net_device *dev)
 							     skb->data,
 							     skb_tailroom(skb),
 							     PCI_DMA_FROMDEVICE);
+			if (pci_dma_mapping_error(np->pci_dev,
+						  np->put_rx_ctx->dma)) {
+				kfree_skb(skb);
+				goto packet_dropped;
+			}
 			np->put_rx_ctx->dma_len = skb_tailroom(skb);
 			np->put_rx.ex->bufhigh = cpu_to_le32(dma_high(np->put_rx_ctx->dma));
 			np->put_rx.ex->buflow = cpu_to_le32(dma_low(np->put_rx_ctx->dma));
@@ -1866,6 +1877,7 @@ static int nv_alloc_rx_optimized(struct net_device *dev)
 			if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
 				np->put_rx_ctx = np->first_rx_ctx;
 		} else {
+packet_dropped:
 			u64_stats_update_begin(&np->swstats_rx_syncp);
 			np->stat_rx_dropped++;
 			u64_stats_update_end(&np->swstats_rx_syncp);
@@ -2217,6 +2229,15 @@ static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
 		np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt,
 						PCI_DMA_TODEVICE);
+		if (pci_dma_mapping_error(np->pci_dev,
+					  np->put_tx_ctx->dma)) {
+			/* on DMA mapping error - drop the packet */
+			kfree_skb(skb);
+			u64_stats_update_begin(&np->swstats_tx_syncp);
+			np->stat_tx_dropped++;
+			u64_stats_update_end(&np->swstats_tx_syncp);
+			return NETDEV_TX_OK;
+		}
 		np->put_tx_ctx->dma_len = bcnt;
 		np->put_tx_ctx->dma_single = 1;
 		put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
@@ -2337,6 +2358,15 @@ static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb,
 		bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
 		np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt,
 						PCI_DMA_TODEVICE);
+		if (pci_dma_mapping_error(np->pci_dev,
+					  np->put_tx_ctx->dma)) {
+			/* on DMA mapping error - drop the packet */
+			kfree_skb(skb);
+			u64_stats_update_begin(&np->swstats_tx_syncp);
+			np->stat_tx_dropped++;
+			u64_stats_update_end(&np->swstats_tx_syncp);
+			return NETDEV_TX_OK;
+		}
 		np->put_tx_ctx->dma_len = bcnt;
 		np->put_tx_ctx->dma_single = 1;
 		put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
@@ -5003,6 +5033,11 @@ static int nv_loopback_test(struct net_device *dev)
 	test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data,
 				       skb_tailroom(tx_skb),
 				       PCI_DMA_FROMDEVICE);
+	if (pci_dma_mapping_error(np->pci_dev,
+				  test_dma_addr)) {
+		dev_kfree_skb_any(tx_skb);
+		goto out;
+	}
 	pkt_data = skb_put(tx_skb, pkt_len);
 	for (i = 0; i < pkt_len; i++)
 		pkt_data[i] = (u8)(i & 0xff);
@@ -5520,7 +5555,7 @@ static const struct net_device_ops nv_netdev_ops_optimized = {
 #endif
 };
 
-static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
+static int nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
 {
 	struct net_device *dev;
 	struct fe_priv *np;
@@ -5995,7 +6030,7 @@ static void nv_restore_mac_addr(struct pci_dev *pci_dev)
 	       base + NvRegTransmitPoll);
 }
 
-static void __devexit nv_remove(struct pci_dev *pci_dev)
+static void nv_remove(struct pci_dev *pci_dev)
 {
 	struct net_device *dev = pci_get_drvdata(pci_dev);
 
@@ -6271,7 +6306,7 @@ static struct pci_driver driver = {
 	.name		= DRV_NAME,
 	.id_table	= pci_tbl,
 	.probe		= nv_probe,
-	.remove		= __devexit_p(nv_remove),
+	.remove		= nv_remove,
 	.shutdown	= nv_shutdown,
 	.driver.pm	= NV_PM_OPS,
 };