diff options
Diffstat (limited to 'arch/loongarch/pci/acpi.c')
| -rw-r--r-- | arch/loongarch/pci/acpi.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/loongarch/pci/acpi.c b/arch/loongarch/pci/acpi.c index 8235ec92b41f..365f7de771cb 100644 --- a/arch/loongarch/pci/acpi.c +++ b/arch/loongarch/pci/acpi.c @@ -26,9 +26,12 @@ void pcibios_add_bus(struct pci_bus *bus) int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) { - struct pci_config_window *cfg = bridge->bus->sysdata; - struct acpi_device *adev = to_acpi_device(cfg->parent); + struct acpi_device *adev = NULL; struct device *bus_dev = &bridge->bus->dev; + struct pci_config_window *cfg = bridge->bus->sysdata; + + if (!acpi_disabled) + adev = to_acpi_device(cfg->parent); ACPI_COMPANION_SET(&bridge->dev, adev); set_dev_node(bus_dev, pa_to_nid(cfg->res.start)); |