1 files changed, 20 insertions, 34 deletions

diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 72300bc..860e15d 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1037,7 +1037,7 @@ static void emac_rx_handler(void *token, int len, int status)
 
 recycle:
 	ret = cpdma_chan_submit(priv->rxchan, skb, skb->data,
-			skb_tailroom(skb), 0, GFP_KERNEL);
+			skb_tailroom(skb), 0);
 
 	WARN_ON(ret == -ENOMEM);
 	if (unlikely(ret < 0))
@@ -1092,7 +1092,7 @@ static int emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev)
 	skb_tx_timestamp(skb);
 
 	ret_code = cpdma_chan_submit(priv->txchan, skb, skb->data, skb->len,
-				     0, GFP_KERNEL);
+				     0);
 	if (unlikely(ret_code != 0)) {
 		if (netif_msg_tx_err(priv) && net_ratelimit())
 			dev_err(emac_dev, "DaVinci EMAC: desc submit failed");
@@ -1438,7 +1438,7 @@ static int emac_poll(struct napi_struct *napi, int budget)
  * Polled functionality used by netconsole and others in non interrupt mode
  *
  */
-void emac_poll_controller(struct net_device *ndev)
+static void emac_poll_controller(struct net_device *ndev)
 {
 	struct emac_priv *priv = netdev_priv(ndev);
 
@@ -1558,7 +1558,7 @@ static int emac_dev_open(struct net_device *ndev)
 			break;
 
 		ret = cpdma_chan_submit(priv->rxchan, skb, skb->data,
-					skb_tailroom(skb), 0, GFP_KERNEL);
+					skb_tailroom(skb), 0);
 		if (WARN_ON(ret < 0))
 			break;
 	}
@@ -1865,21 +1865,18 @@ static int davinci_emac_probe(struct platform_device *pdev)
 
 
 	/* obtain emac clock from kernel */
-	emac_clk = clk_get(&pdev->dev, NULL);
+	emac_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(emac_clk)) {
 		dev_err(&pdev->dev, "failed to get EMAC clock\n");
 		return -EBUSY;
 	}
 	emac_bus_frequency = clk_get_rate(emac_clk);
-	clk_put(emac_clk);
 
 	/* TODO: Probe PHY here if possible */
 
 	ndev = alloc_etherdev(sizeof(struct emac_priv));
-	if (!ndev) {
-		rc = -ENOMEM;
-		goto no_ndev;
-	}
+	if (!ndev)
+		return -ENOMEM;
 
 	platform_set_drvdata(pdev, ndev);
 	priv = netdev_priv(ndev);
@@ -1893,7 +1890,7 @@ static int davinci_emac_probe(struct platform_device *pdev)
 	if (!pdata) {
 		dev_err(&pdev->dev, "no platform data\n");
 		rc = -ENODEV;
-		goto probe_quit;
+		goto no_pdata;
 	}
 
 	/* MAC addr and PHY mask , RMII enable info from platform_data */
@@ -1913,23 +1910,23 @@ static int davinci_emac_probe(struct platform_device *pdev)
 	if (!res) {
 		dev_err(&pdev->dev,"error getting res\n");
 		rc = -ENOENT;
-		goto probe_quit;
+		goto no_pdata;
 	}
 
 	priv->emac_base_phys = res->start + pdata->ctrl_reg_offset;
 	size = resource_size(res);
-	if (!request_mem_region(res->start, size, ndev->name)) {
+	if (!devm_request_mem_region(&pdev->dev, res->start,
+				     size, ndev->name)) {
 		dev_err(&pdev->dev, "failed request_mem_region() for regs\n");
 		rc = -ENXIO;
-		goto probe_quit;
+		goto no_pdata;
 	}
 
-	priv->remap_addr = ioremap(res->start, size);
+	priv->remap_addr = devm_ioremap(&pdev->dev, res->start, size);
 	if (!priv->remap_addr) {
 		dev_err(&pdev->dev, "unable to map IO\n");
 		rc = -ENOMEM;
-		release_mem_region(res->start, size);
-		goto probe_quit;
+		goto no_pdata;
 	}
 	priv->emac_base = priv->remap_addr + pdata->ctrl_reg_offset;
 	ndev->base_addr = (unsigned long)priv->remap_addr;
@@ -1962,7 +1959,7 @@ static int davinci_emac_probe(struct platform_device *pdev)
 	if (!priv->dma) {
 		dev_err(&pdev->dev, "error initializing DMA\n");
 		rc = -ENOMEM;
-		goto no_dma;
+		goto no_pdata;
 	}
 
 	priv->txchan = cpdma_chan_create(priv->dma, tx_chan_num(EMAC_DEF_TX_CH),
@@ -1971,14 +1968,14 @@ static int davinci_emac_probe(struct platform_device *pdev)
 				       emac_rx_handler);
 	if (WARN_ON(!priv->txchan || !priv->rxchan)) {
 		rc = -ENOMEM;
-		goto no_irq_res;
+		goto no_cpdma_chan;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "error getting irq res\n");
 		rc = -ENOENT;
-		goto no_irq_res;
+		goto no_cpdma_chan;
 	}
 	ndev->irq = res->start;
 
@@ -2000,7 +1997,7 @@ static int davinci_emac_probe(struct platform_device *pdev)
 	if (rc) {
 		dev_err(&pdev->dev, "error in register_netdev\n");
 		rc = -ENODEV;
-		goto no_irq_res;
+		goto no_cpdma_chan;
 	}
 
 
@@ -2015,20 +2012,14 @@ static int davinci_emac_probe(struct platform_device *pdev)
 
 	return 0;
 
-no_irq_res:
+no_cpdma_chan:
 	if (priv->txchan)
 		cpdma_chan_destroy(priv->txchan);
 	if (priv->rxchan)
 		cpdma_chan_destroy(priv->rxchan);
 	cpdma_ctlr_destroy(priv->dma);
-no_dma:
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	release_mem_region(res->start, resource_size(res));
-	iounmap(priv->remap_addr);
-
-probe_quit:
+no_pdata:
 	free_netdev(ndev);
-no_ndev:
 	return rc;
 }
 
@@ -2041,14 +2032,12 @@ no_ndev:
  */
 static int davinci_emac_remove(struct platform_device *pdev)
 {
-	struct resource *res;
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct emac_priv *priv = netdev_priv(ndev);
 
 	dev_notice(&ndev->dev, "DaVinci EMAC: davinci_emac_remove()\n");
 
 	platform_set_drvdata(pdev, NULL);
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
 	if (priv->txchan)
 		cpdma_chan_destroy(priv->txchan);
@@ -2056,10 +2045,7 @@ static int davinci_emac_remove(struct platform_device *pdev)
 		cpdma_chan_destroy(priv->rxchan);
 	cpdma_ctlr_destroy(priv->dma);
 
-	release_mem_region(res->start, resource_size(res));
-
 	unregister_netdev(ndev);
-	iounmap(priv->remap_addr);
 	free_netdev(ndev);
 
 	return 0;