1 files changed, 31 insertions, 18 deletions

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 3a8775e0ca55..f8f8654ea728 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -1053,9 +1053,9 @@ static int axienet_open(struct net_device *ndev)
 	 * including the MDIO. MDIO must be disabled before resetting.
 	 * Hold MDIO bus lock to avoid MDIO accesses during the reset.
 	 */
-	mutex_lock(&lp->mii_bus->mdio_lock);
+	axienet_lock_mii(lp);
 	ret = axienet_device_reset(ndev);
-	mutex_unlock(&lp->mii_bus->mdio_lock);
+	axienet_unlock_mii(lp);
 
 	ret = phylink_of_phy_connect(lp->phylink, lp->dev->of_node, 0);
 	if (ret) {
@@ -1148,9 +1148,9 @@ static int axienet_stop(struct net_device *ndev)
 	}
 
 	/* Do a reset to ensure DMA is really stopped */
-	mutex_lock(&lp->mii_bus->mdio_lock);
+	axienet_lock_mii(lp);
 	__axienet_device_reset(lp);
-	mutex_unlock(&lp->mii_bus->mdio_lock);
+	axienet_unlock_mii(lp);
 
 	cancel_work_sync(&lp->dma_err_task);
 
@@ -1709,9 +1709,9 @@ static void axienet_dma_err_handler(struct work_struct *work)
 	 * including the MDIO. MDIO must be disabled before resetting.
 	 * Hold MDIO bus lock to avoid MDIO accesses during the reset.
 	 */
-	mutex_lock(&lp->mii_bus->mdio_lock);
+	axienet_lock_mii(lp);
 	__axienet_device_reset(lp);
-	mutex_unlock(&lp->mii_bus->mdio_lock);
+	axienet_unlock_mii(lp);
 
 	for (i = 0; i < lp->tx_bd_num; i++) {
 		cur_p = &lp->tx_bd_v[i];
@@ -1880,7 +1880,7 @@ static int axienet_probe(struct platform_device *pdev)
 	if (IS_ERR(lp->regs)) {
 		dev_err(&pdev->dev, "could not map Axi Ethernet regs.\n");
 		ret = PTR_ERR(lp->regs);
-		goto free_netdev;
+		goto cleanup_clk;
 	}
 	lp->regs_start = ethres->start;
 
@@ -1958,18 +1958,18 @@ static int axienet_probe(struct platform_device *pdev)
 			break;
 		default:
 			ret = -EINVAL;
-			goto free_netdev;
+			goto cleanup_clk;
 		}
 	} else {
 		ret = of_get_phy_mode(pdev->dev.of_node, &lp->phy_mode);
 		if (ret)
-			goto free_netdev;
+			goto cleanup_clk;
 	}
 	if (lp->switch_x_sgmii && lp->phy_mode != PHY_INTERFACE_MODE_SGMII &&
 	    lp->phy_mode != PHY_INTERFACE_MODE_1000BASEX) {
 		dev_err(&pdev->dev, "xlnx,switch-x-sgmii only supported with SGMII or 1000BaseX\n");
 		ret = -EINVAL;
-		goto free_netdev;
+		goto cleanup_clk;
 	}
 
 	/* Find the DMA node, map the DMA registers, and decode the DMA IRQs */
@@ -1982,7 +1982,7 @@ static int axienet_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev,
 				"unable to get DMA resource\n");
 			of_node_put(np);
-			goto free_netdev;
+			goto cleanup_clk;
 		}
 		lp->dma_regs = devm_ioremap_resource(&pdev->dev,
 						     &dmares);
@@ -2002,12 +2002,12 @@ static int axienet_probe(struct platform_device *pdev)
 	if (IS_ERR(lp->dma_regs)) {
 		dev_err(&pdev->dev, "could not map DMA regs\n");
 		ret = PTR_ERR(lp->dma_regs);
-		goto free_netdev;
+		goto cleanup_clk;
 	}
 	if ((lp->rx_irq <= 0) || (lp->tx_irq <= 0)) {
 		dev_err(&pdev->dev, "could not determine irqs\n");
 		ret = -ENOMEM;
-		goto free_netdev;
+		goto cleanup_clk;
 	}
 
 	/* Autodetect the need for 64-bit DMA pointers.
@@ -2037,7 +2037,7 @@ static int axienet_probe(struct platform_device *pdev)
 	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(addr_width));
 	if (ret) {
 		dev_err(&pdev->dev, "No suitable DMA available\n");
-		goto free_netdev;
+		goto cleanup_clk;
 	}
 
 	/* Check for Ethernet core IRQ (optional) */
@@ -2068,12 +2068,12 @@ static int axienet_probe(struct platform_device *pdev)
 		if (!lp->phy_node) {
 			dev_err(&pdev->dev, "phy-handle required for 1000BaseX/SGMII\n");
 			ret = -EINVAL;
-			goto free_netdev;
+			goto cleanup_mdio;
 		}
 		lp->pcs_phy = of_mdio_find_device(lp->phy_node);
 		if (!lp->pcs_phy) {
 			ret = -EPROBE_DEFER;
-			goto free_netdev;
+			goto cleanup_mdio;
 		}
 		lp->phylink_config.pcs_poll = true;
 	}
@@ -2087,17 +2087,30 @@ static int axienet_probe(struct platform_device *pdev)
 	if (IS_ERR(lp->phylink)) {
 		ret = PTR_ERR(lp->phylink);
 		dev_err(&pdev->dev, "phylink_create error (%i)\n", ret);
-		goto free_netdev;
+		goto cleanup_mdio;
 	}
 
 	ret = register_netdev(lp->ndev);
 	if (ret) {
 		dev_err(lp->dev, "register_netdev() error (%i)\n", ret);
-		goto free_netdev;
+		goto cleanup_phylink;
 	}
 
 	return 0;
 
+cleanup_phylink:
+	phylink_destroy(lp->phylink);
+
+cleanup_mdio:
+	if (lp->pcs_phy)
+		put_device(&lp->pcs_phy->dev);
+	if (lp->mii_bus)
+		axienet_mdio_teardown(lp);
+	of_node_put(lp->phy_node);
+
+cleanup_clk:
+	clk_disable_unprepare(lp->clk);
+
 free_netdev:
 	free_netdev(ndev);