diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-pci.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-pci.c | 54 |
1 files changed, 51 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c index d930be41cff2..ef9cb0813c69 100644 --- a/drivers/net/wireless/iwlwifi/iwl-pci.c +++ b/drivers/net/wireless/iwlwifi/iwl-pci.c @@ -67,6 +67,29 @@ #include "iwl-agn.h" #include "iwl-core.h" +struct iwl_pci_bus { + /* basic pci-network driver stuff */ + struct pci_dev *pci_dev; + + /* pci hardware address support */ + void __iomem *hw_base; +}; + +#define IWL_BUS_GET_PCI_BUS(_iwl_bus) \ + ((struct iwl_pci_bus *) ((_iwl_bus)->bus_specific)) + +#define IWL_BUS_GET_PCI_DEV(_iwl_bus) \ + ((IWL_BUS_GET_PCI_BUS(_iwl_bus))->pci_dev) + +static void iwl_pci_set_drv_data(struct iwl_bus *bus, void *drv_priv) +{ + pci_set_drvdata(IWL_BUS_GET_PCI_DEV(bus), drv_priv); +} + +static struct iwl_bus_ops pci_ops = { + .set_drv_data = iwl_pci_set_drv_data, +}; + #define IWL_PCI_DEVICE(dev, subdev, cfg) \ .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \ .subvendor = PCI_ANY_ID, .subdevice = (subdev), \ @@ -266,13 +289,38 @@ MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); - - return iwl_probe(pdev, cfg); + struct iwl_pci_bus *bus; + int err; + + bus = kzalloc(sizeof(*bus), GFP_KERNEL); + if (!bus) { + pr_err("Couldn't allocate iwl_pci_bus"); + err = -ENOMEM; + goto out_no_pci; + } + + bus->pci_dev = pdev; + + err = iwl_probe((void *) bus, &pci_ops, cfg); + if (err) + goto out_no_pci; + return 0; + +out_no_pci: + kfree(bus); + return err; } static void __devexit iwl_pci_remove(struct pci_dev *pdev) { - iwl_remove(pdev); + struct iwl_priv *priv = pci_get_drvdata(pdev); + + /* This can happen if probe failed */ + if (unlikely(!priv)) + return; + + iwl_remove(priv); + kfree(IWL_BUS_GET_PCI_BUS(&priv->bus)); } #ifdef CONFIG_PM |