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pch_gbe: use managed functions pcim_* and devm_* 

This makes the error handling much more simpler than open-coding everything and
in addition makes the probe function smaller an tidier.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andy Shevchenko 2013-06-28 14:02:54 +03:00 committed by David S. Miller
parent 453ca931f5
commit 29cc436cb9
1 changed files with 15 additions and 35 deletions
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50
drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
View File

@ -636,15 +636,15 @@ static void pch_gbe_mac_set_pause_packet(struct pch_gbe_hw *hw)
*/
static int pch_gbe_alloc_queues(struct pch_gbe_adapter *adapter)
{
adapter->tx_ring = kzalloc(sizeof(*adapter->tx_ring), GFP_KERNEL);
adapter->tx_ring = devm_kzalloc(&adapter->pdev->dev,
sizeof(*adapter->tx_ring), GFP_KERNEL);
if (!adapter->tx_ring)
return -ENOMEM;
adapter->rx_ring = kzalloc(sizeof(*adapter->rx_ring), GFP_KERNEL);
if (!adapter->rx_ring) {
kfree(adapter->tx_ring);
adapter->rx_ring = devm_kzalloc(&adapter->pdev->dev,
sizeof(*adapter->rx_ring), GFP_KERNEL);
if (!adapter->rx_ring)
return -ENOMEM;
}
return 0;
}
@ -2588,13 +2588,7 @@ static void pch_gbe_remove(struct pci_dev *pdev)
pch_gbe_hal_phy_hw_reset(&adapter->hw);
kfree(adapter->tx_ring);
kfree(adapter->rx_ring);
iounmap(adapter->hw.reg);
pci_release_regions(pdev);
free_netdev(netdev);
pci_disable_device(pdev);
}
static int pch_gbe_probe(struct pci_dev *pdev,
@ -2604,7 +2598,7 @@ static int pch_gbe_probe(struct pci_dev *pdev,
struct pch_gbe_adapter *adapter;
int ret;
ret = pci_enable_device(pdev);
ret = pcim_enable_device(pdev);
if (ret)
return ret;
@ -2617,24 +2611,22 @@ static int pch_gbe_probe(struct pci_dev *pdev,
if (ret) {
dev_err(&pdev->dev, "ERR: No usable DMA "
"configuration, aborting\n");
goto err_disable_device;
return ret;
}
}
}
ret = pci_request_regions(pdev, KBUILD_MODNAME);
ret = pcim_iomap_regions(pdev, 1 << PCH_GBE_PCI_BAR, pci_name(pdev));
if (ret) {
dev_err(&pdev->dev,
"ERR: Can't reserve PCI I/O and memory resources\n");
goto err_disable_device;
return ret;
}
pci_set_master(pdev);
netdev = alloc_etherdev((int)sizeof(struct pch_gbe_adapter));
if (!netdev) {
ret = -ENOMEM;
goto err_release_pci;
}
if (!netdev)
return -ENOMEM;
SET_NETDEV_DEV(netdev, &pdev->dev);
pci_set_drvdata(pdev, netdev);
@ -2642,18 +2634,14 @@ static int pch_gbe_probe(struct pci_dev *pdev,
adapter->netdev = netdev;
adapter->pdev = pdev;
adapter->hw.back = adapter;
adapter->hw.reg = pci_iomap(pdev, PCH_GBE_PCI_BAR, 0);
if (!adapter->hw.reg) {
ret = -EIO;
dev_err(&pdev->dev, "Can't ioremap\n");
goto err_free_netdev;
}
adapter->hw.reg = pcim_iomap_table(pdev)[PCH_GBE_PCI_BAR];
adapter->ptp_pdev = pci_get_bus_and_slot(adapter->pdev->bus->number,
PCI_DEVFN(12, 4));
if (ptp_filter_init(ptp_filter, ARRAY_SIZE(ptp_filter))) {
dev_err(&pdev->dev, "Bad ptp filter\n");
return -EINVAL;
ret = -EINVAL;
goto err_free_netdev;
}
netdev->netdev_ops = &pch_gbe_netdev_ops;
@ -2671,7 +2659,7 @@ static int pch_gbe_probe(struct pci_dev *pdev,
/* setup the private structure */
ret = pch_gbe_sw_init(adapter);
if (ret)
goto err_iounmap;
goto err_free_netdev;
/* Initialize PHY */
ret = pch_gbe_init_phy(adapter);
@ -2727,16 +2715,8 @@ static int pch_gbe_probe(struct pci_dev *pdev,
err_free_adapter:
pch_gbe_hal_phy_hw_reset(&adapter->hw);
kfree(adapter->tx_ring);
kfree(adapter->rx_ring);
err_iounmap:
iounmap(adapter->hw.reg);
err_free_netdev:
free_netdev(netdev);
err_release_pci:
pci_release_regions(pdev);
err_disable_device:
pci_disable_device(pdev);
return ret;
}