diff options
| -rw-r--r-- | arch/ia64/pci/pci.c | 100 |
1 files changed, 57 insertions, 43 deletions
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 72a1957dfff3..586cac1f47bb 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -376,6 +376,50 @@ static void release_pci_root_info(struct pci_host_bridge *bridge) __release_pci_root_info(info); } +static int +probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device, + int busnum, int domain) +{ + char *name; + + name = kmalloc(16, GFP_KERNEL); + if (!name) + return -ENOMEM; + + sprintf(name, "PCI Bus %04x:%02x", domain, busnum); + info->bridge = device; + info->name = name; + + acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window, + &info->res_num); + if (info->res_num) { + info->res = + kzalloc_node(sizeof(*info->res) * info->res_num, + GFP_KERNEL, info->controller->node); + if (!info->res) { + kfree(name); + return -ENOMEM; + } + + info->res_offset = + kzalloc_node(sizeof(*info->res_offset) * info->res_num, + GFP_KERNEL, info->controller->node); + if (!info->res_offset) { + kfree(name); + kfree(info->res); + info->res = NULL; + return -ENOMEM; + } + + info->res_num = 0; + acpi_walk_resources(device->handle, METHOD_NAME__CRS, + add_window, info); + } else + kfree(name); + + return 0; +} + struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) { struct acpi_device *device = root->device; @@ -385,12 +429,11 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) struct pci_root_info *info = NULL; int busnum = root->secondary.start; struct pci_bus *pbus; - char *name; - int pxm; + int pxm, ret; controller = alloc_pci_controller(domain); if (!controller) - goto out1; + return NULL; controller->acpi_handle = device->handle; @@ -404,41 +447,23 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) if (!info) { printk(KERN_WARNING "pci_bus %04x:%02x: ignored (out of memory)\n", - root->segment, busnum); - goto out2; + domain, busnum); + kfree(controller); + return NULL; } + info->controller = controller; INIT_LIST_HEAD(&info->io_resources); INIT_LIST_HEAD(&info->resources); - /* insert busn resource at first */ - pci_add_resource(&info->resources, &root->secondary); - acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window, - &info->res_num); - if (info->res_num) { - info->res = - kzalloc_node(sizeof(*info->res) * info->res_num, - GFP_KERNEL, controller->node); - if (!info->res) - goto out3; - info->res_offset = - kzalloc_node(sizeof(*info->res_offset) * info->res_num, - GFP_KERNEL, controller->node); - if (!info->res_offset) - goto out4; - - name = kmalloc(16, GFP_KERNEL); - if (!name) - goto out5; - - sprintf(name, "PCI Bus %04x:%02x", domain, bus); - info->bridge = device; - info->controller = controller; - info->name = name; - info->res_num = 0; - acpi_walk_resources(device->handle, METHOD_NAME__CRS, - add_window, info); + ret = probe_pci_root_info(info, device, busnum, domain); + if (ret) { + kfree(info->controller); + kfree(info); + return NULL; } + /* insert busn resource at first */ + pci_add_resource(&info->resources, &root->secondary); /* * See arch/x86/pci/acpi.c. * The desired pci bus might already be scanned in a quirk. We @@ -457,17 +482,6 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) release_pci_root_info, info); pci_scan_child_bus(pbus); return pbus; - -out5: - kfree(info->res_offset); -out4: - kfree(info->res); -out3: - kfree(info); -out2: - kfree(controller); -out1: - return NULL; } int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) |