1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/irqchip/irq-xtensa-mx.c b/drivers/irqchip/irq-xtensa-mx.c
index bb3ac5fe5846..72a391e01011 100644
--- a/drivers/irqchip/irq-xtensa-mx.c
+++ b/drivers/irqchip/irq-xtensa-mx.c
@@ -142,7 +142,7 @@ static struct irq_chip xtensa_mx_irq_chip = {
 int __init xtensa_mx_init_legacy(struct device_node *interrupt_parent)
 {
         struct irq_domain *root_domain =
-                irq_domain_add_legacy(NULL, NR_IRQS, 0, 0,
+                irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
                                 &xtensa_mx_irq_domain_ops,
                                 &xtensa_mx_irq_chip);
         irq_set_default_host(root_domain);