diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index 7338f90b2f9e91bcfaf9ce9bbd33963c1ce70dd2..e88e75c22b6a084d9bad7d891b1129d3f899001e 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -525,7 +525,7 @@ acpi_parse_madt_msi(union acpi_subtable_headers *header,
 			spi_start, nr_spis);
 	}
 
-	fwnode = irq_domain_alloc_fwnode((void *)m->base_address);
+	fwnode = irq_domain_alloc_fwnode(&res.start);
 	if (!fwnode) {
 		pr_err("Unable to allocate GICv2m domain token\n");
 		return -EINVAL;