diff options
| author | Tomoya <tomoya-linux@dsn.okisemi.com> | 2010-12-12 20:24:22 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-13 12:24:26 -0800 |
| commit | a6f6d6b51b110e661ae5f862d60c27da4970bec6 (patch) | |
| tree | 8a0c98c4d4a5098d6f99baddaceae0e348d8308c | |
| parent | c755145649fa73bd197ac1a73d141047c61b543a (diff) | |
| download | linux-a6f6d6b51b110e661ae5f862d60c27da4970bec6.tar.bz2 | |
pch_can: Move MSI processing to probe/remove processing
Currently, in case this driver is integrated as module, and when this
module is re-installed, no interrupts is to be occurred.
For the above issue, move MSI processing to open/release processing.
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/can/pch_can.c | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index a1fd3be69a81..ace1fe790ce0 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -845,15 +845,6 @@ static int pch_can_open(struct net_device *ndev) struct pch_can_priv *priv = netdev_priv(ndev); int retval; - retval = pci_enable_msi(priv->dev); - if (retval) { - netdev_err(ndev, "PCH CAN opened without MSI\n"); - priv->use_msi = 0; - } else { - netdev_err(ndev, "PCH CAN opened with MSI\n"); - priv->use_msi = 1; - } - /* Regstering the interrupt. */ retval = request_irq(priv->dev->irq, pch_can_interrupt, IRQF_SHARED, ndev->name, ndev); @@ -879,9 +870,6 @@ static int pch_can_open(struct net_device *ndev) err_open_candev: free_irq(priv->dev->irq, ndev); req_irq_err: - if (priv->use_msi) - pci_disable_msi(priv->dev); - pch_can_release(priv); return retval; @@ -895,8 +883,6 @@ static int pch_close(struct net_device *ndev) napi_disable(&priv->napi); pch_can_release(priv); free_irq(priv->dev->irq, ndev); - if (priv->use_msi) - pci_disable_msi(priv->dev); close_candev(ndev); priv->can.state = CAN_STATE_STOPPED; return 0; @@ -975,12 +961,14 @@ static void __devexit pch_can_remove(struct pci_dev *pdev) struct pch_can_priv *priv = netdev_priv(ndev); unregister_candev(priv->ndev); - free_candev(priv->ndev); pci_iounmap(pdev, priv->regs); + if (priv->use_msi) + pci_disable_msi(priv->dev); pci_release_regions(pdev); pci_disable_device(pdev); pci_set_drvdata(pdev, NULL); pch_can_reset(priv); + free_candev(priv->ndev); } #ifdef CONFIG_PM @@ -1244,6 +1232,15 @@ static int __devinit pch_can_probe(struct pci_dev *pdev, netif_napi_add(ndev, &priv->napi, pch_can_poll, PCH_RX_OBJ_END); + rc = pci_enable_msi(priv->dev); + if (rc) { + netdev_err(ndev, "PCH CAN opened without MSI\n"); + priv->use_msi = 0; + } else { + netdev_err(ndev, "PCH CAN opened with MSI\n"); + priv->use_msi = 1; + } + rc = register_candev(ndev); if (rc) { dev_err(&pdev->dev, "Failed register_candev %d\n", rc); @@ -1253,6 +1250,8 @@ static int __devinit pch_can_probe(struct pci_dev *pdev, return 0; probe_exit_reg_candev: + if (priv->use_msi) + pci_disable_msi(priv->dev); free_candev(ndev); probe_exit_alloc_candev: pci_iounmap(pdev, addr); |