diff --git a/arch/loongarch/pci/acpi.c b/arch/loongarch/pci/acpi.c
index 8235ec92b41f..debd79f71286 100644
--- a/arch/loongarch/pci/acpi.c
+++ b/arch/loongarch/pci/acpi.c
@@ -222,6 +222,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
 	if (bus) {
 		memcpy(bus->sysdata, info->cfg, sizeof(struct pci_config_window));
 		kfree(info);
+		kfree(root_ops);
 	} else {
 		struct pci_bus *child;