LoongArch: pci root bridige set acpi companion only when not acpi_dis…

…abled. Fix patch "LoongArch: Add PCI controller support" Signed-off-by: Tianli Xiong <[email protected]> Signed-off-by: Yanteng Si <[email protected]>
sterling-teng · May 20, 2024 · b398610 · b398610
1 parent 570765a
commit b398610
Showing 1 changed file with 8 additions and 7 deletions.
diff --git a/arch/loongarch/pci/acpi.c b/arch/loongarch/pci/acpi.c
@@ -26,16 +26,17 @@ void pcibios_add_bus(struct pci_bus *bus)
 
 int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
 {
-	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);
+	if (!acpi_disabled) {
+		struct acpi_device *adev = NULL;
+		struct device *bus_dev = &bridge->bus->dev;
+		struct pci_config_window *cfg = bridge->bus->sysdata;
 
-	ACPI_COMPANION_SET(&bridge->dev, adev);
-	set_dev_node(bus_dev, pa_to_nid(cfg->res.start));
+		adev = to_acpi_device(cfg->parent);
 
+		ACPI_COMPANION_SET(&bridge->dev, adev);
+		set_dev_node(bus_dev, pa_to_nid(cfg->res.start));
+	}
 	return 0;
 }