| Message ID | 1352003971-22278-9-git-send-email-yinghai@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 012f40d..bc09567 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -644,8 +644,10 @@ static int acpi_pci_root_start(struct acpi_device *device) struct acpi_pci_root *root = acpi_driver_data(device); struct acpi_pci_driver *driver; - if (system_state != SYSTEM_BOOTING) + if (system_state != SYSTEM_BOOTING) { + pcibios_resource_survey_bus(root->bus); pci_assign_unassigned_bus_resources(root->bus); + } mutex_lock(&acpi_pci_root_lock); list_for_each_entry(driver, &acpi_pci_drivers, node)
FW could already allocate resource in pci bar registers, and we need to reserve it before try to allocate another one. Signed-off-by: Yinghai Lu <yinghai@kernel.org> --- drivers/acpi/pci_root.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)