diff options
Diffstat (limited to 'arch/x86/pci/acpi.c')
| -rw-r--r-- | arch/x86/pci/acpi.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 425500bb24e6..a312e76063a7 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -12,7 +12,7 @@ struct pci_root_info { char *name; unsigned int res_num; struct resource *res; - struct pci_bus *bus; + struct list_head *resources; int busnum; }; @@ -304,23 +304,20 @@ static void add_resources(struct pci_root_info *info) "ignoring host bridge window %pR (conflicts with %s %pR)\n", res, conflict->name, conflict); else - pci_bus_add_resource(info->bus, res, 0); + pci_add_resource(info->resources, res); } } static void get_current_resources(struct acpi_device *device, int busnum, - int domain, struct pci_bus *bus) + int domain, struct list_head *resources) { struct pci_root_info info; size_t size; - if (pci_use_crs) - pci_bus_remove_resources(bus); - info.bridge = device; - info.bus = bus; info.res_num = 0; + info.resources = resources; acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_resource, &info); if (!info.res_num) @@ -329,7 +326,7 @@ get_current_resources(struct acpi_device *device, int busnum, size = sizeof(*info.res) * info.res_num; info.res = kmalloc(size, GFP_KERNEL); if (!info.res) - goto res_alloc_fail; + return; info.name = kasprintf(GFP_KERNEL, "PCI Bus %04x:%02x", domain, busnum); if (!info.name) @@ -344,8 +341,6 @@ get_current_resources(struct acpi_device *device, int busnum, name_alloc_fail: kfree(info.res); -res_alloc_fail: - return; } struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) @@ -353,6 +348,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) struct acpi_device *device = root->device; int domain = root->segment; int busnum = root->secondary.start; + LIST_HEAD(resources); struct pci_bus *bus; struct pci_sysdata *sd; int node; @@ -407,11 +403,15 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) memcpy(bus->sysdata, sd, sizeof(*sd)); kfree(sd); } else { - bus = pci_create_bus(NULL, busnum, &pci_root_ops, sd); - if (bus) { - get_current_resources(device, busnum, domain, bus); + get_current_resources(device, busnum, domain, &resources); + if (list_empty(&resources)) + x86_pci_root_bus_resources(busnum, &resources); + bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, sd, + &resources); + if (bus) bus->subordinate = pci_scan_child_bus(bus); - } + else + pci_free_resource_list(&resources); } /* After the PCI-E bus has been walked and all devices discovered, |