diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/sky2.c | 113 |
1 files changed, 60 insertions, 53 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index ba5180a23264..7108b1292b92 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -1405,6 +1405,61 @@ nomem: return -ENOMEM; } +static int sky2_alloc_buffers(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + + /* must be power of 2 */ + sky2->tx_le = pci_alloc_consistent(hw->pdev, + sky2->tx_ring_size * + sizeof(struct sky2_tx_le), + &sky2->tx_le_map); + if (!sky2->tx_le) + goto nomem; + + sky2->tx_ring = kcalloc(sky2->tx_ring_size, sizeof(struct tx_ring_info), + GFP_KERNEL); + if (!sky2->tx_ring) + goto nomem; + + sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES, + &sky2->rx_le_map); + if (!sky2->rx_le) + goto nomem; + memset(sky2->rx_le, 0, RX_LE_BYTES); + + sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info), + GFP_KERNEL); + if (!sky2->rx_ring) + goto nomem; + + return 0; +nomem: + return -ENOMEM; +} + +static void sky2_free_buffers(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + + if (sky2->rx_le) { + pci_free_consistent(hw->pdev, RX_LE_BYTES, + sky2->rx_le, sky2->rx_le_map); + sky2->rx_le = NULL; + } + if (sky2->tx_le) { + pci_free_consistent(hw->pdev, + sky2->tx_ring_size * sizeof(struct sky2_tx_le), + sky2->tx_le, sky2->tx_le_map); + sky2->tx_le = NULL; + } + kfree(sky2->tx_ring); + kfree(sky2->rx_ring); + + sky2->tx_ring = NULL; + sky2->rx_ring = NULL; +} + /* Bring up network interface. */ static int sky2_up(struct net_device *dev) { @@ -1412,7 +1467,7 @@ static int sky2_up(struct net_device *dev) struct sky2_hw *hw = sky2->hw; unsigned port = sky2->port; u32 imask, ramsize; - int cap, err = -ENOMEM; + int cap, err; struct net_device *otherdev = hw->dev[sky2->port^1]; /* @@ -1431,32 +1486,12 @@ static int sky2_up(struct net_device *dev) netif_carrier_off(dev); - /* must be power of 2 */ - sky2->tx_le = pci_alloc_consistent(hw->pdev, - sky2->tx_ring_size * - sizeof(struct sky2_tx_le), - &sky2->tx_le_map); - if (!sky2->tx_le) - goto err_out; - - sky2->tx_ring = kcalloc(sky2->tx_ring_size, sizeof(struct tx_ring_info), - GFP_KERNEL); - if (!sky2->tx_ring) + err = sky2_alloc_buffers(sky2); + if (err) goto err_out; tx_init(sky2); - sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES, - &sky2->rx_le_map); - if (!sky2->rx_le) - goto err_out; - memset(sky2->rx_le, 0, RX_LE_BYTES); - - sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info), - GFP_KERNEL); - if (!sky2->rx_ring) - goto err_out; - sky2_mac_init(hw, port); /* Register is number of 4K blocks on internal RAM buffer. */ @@ -1513,22 +1548,7 @@ static int sky2_up(struct net_device *dev) return 0; err_out: - if (sky2->rx_le) { - pci_free_consistent(hw->pdev, RX_LE_BYTES, - sky2->rx_le, sky2->rx_le_map); - sky2->rx_le = NULL; - } - if (sky2->tx_le) { - pci_free_consistent(hw->pdev, - sky2->tx_ring_size * sizeof(struct sky2_tx_le), - sky2->tx_le, sky2->tx_le_map); - sky2->tx_le = NULL; - } - kfree(sky2->tx_ring); - kfree(sky2->rx_ring); - - sky2->tx_ring = NULL; - sky2->rx_ring = NULL; + sky2_free_buffers(sky2); return err; } @@ -1880,20 +1900,7 @@ static int sky2_down(struct net_device *dev) sky2_rx_clean(sky2); - pci_free_consistent(hw->pdev, RX_LE_BYTES, - sky2->rx_le, sky2->rx_le_map); - kfree(sky2->rx_ring); - - pci_free_consistent(hw->pdev, - sky2->tx_ring_size * sizeof(struct sky2_tx_le), - sky2->tx_le, sky2->tx_le_map); - kfree(sky2->tx_ring); - - sky2->tx_le = NULL; - sky2->rx_le = NULL; - - sky2->rx_ring = NULL; - sky2->tx_ring = NULL; + sky2_free_buffers(sky2); return 0; } |