diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv_core.c | 37 |
1 files changed, 16 insertions, 21 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 8d458a03afc9..8fb14aeb74dd 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -373,21 +373,16 @@ static pci_ers_result_t broadcast_error_message(struct pci_dev *dev, return result_data.result; } -struct find_aer_service_data { - struct pcie_port_service_driver *aer_driver; -}; - static int find_aer_service_iter(struct device *device, void *data) { - struct pcie_port_service_driver *service_driver; - struct find_aer_service_data *result; + struct pcie_port_service_driver *service_driver, **drv; - result = (struct find_aer_service_data *) data; + drv = (struct pcie_port_service_driver **) data; if (device->bus == &pcie_port_bus_type && device->driver) { service_driver = to_service_driver(device->driver); if (service_driver->service == PCIE_PORT_SERVICE_AER) { - result->aer_driver = service_driver; + *drv = service_driver; return 1; } } @@ -395,11 +390,13 @@ static int find_aer_service_iter(struct device *device, void *data) return 0; } -static void find_aer_service(struct pci_dev *dev, - struct find_aer_service_data *data) +static struct pcie_port_service_driver *find_aer_service(struct pci_dev *dev) { - int retval; - retval = device_for_each_child(&dev->dev, data, find_aer_service_iter); + struct pcie_port_service_driver *drv = NULL; + + device_for_each_child(&dev->dev, &drv, find_aer_service_iter); + + return drv; } static pci_ers_result_t reset_link(struct pcie_device *aerdev, @@ -407,26 +404,24 @@ static pci_ers_result_t reset_link(struct pcie_device *aerdev, { struct pci_dev *udev; pci_ers_result_t status; - struct find_aer_service_data data; + struct pcie_port_service_driver *driver; if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE) udev = dev; else udev = dev->bus->self; - data.aer_driver = NULL; - find_aer_service(udev, &data); + /* Use the aer driver of the component firstly */ + driver = find_aer_service(udev); /* - * Use the aer driver of the error agent firstly. - * If it hasn't the aer driver, use the root port's + * If it hasn't the driver and is downstream port, use the root port's */ - if (!data.aer_driver || !data.aer_driver->reset_link) { + if (!driver || !driver->reset_link) { if (udev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM && aerdev->device.driver && to_service_driver(aerdev->device.driver)->reset_link) { - data.aer_driver = - to_service_driver(aerdev->device.driver); + driver = to_service_driver(aerdev->device.driver); } else { dev_printk(KERN_DEBUG, &dev->dev, "no link-reset support at upstream device %s\n", @@ -435,7 +430,7 @@ static pci_ers_result_t reset_link(struct pcie_device *aerdev, } } - status = data.aer_driver->reset_link(udev); + status = driver->reset_link(udev); if (status != PCI_ERS_RESULT_RECOVERED) { dev_printk(KERN_DEBUG, &dev->dev, "link reset at upstream device %s failed\n", |