diff --git a/drivers/irqchip/irq-loongson-eiointc.c b/drivers/irqchip/irq-loongson-eiointc.c
index ac04aeaa2d308..3d99b8bdd8ef1 100644
--- a/drivers/irqchip/irq-loongson-eiointc.c
+++ b/drivers/irqchip/irq-loongson-eiointc.c
@@ -145,7 +145,7 @@ static int eiointc_router_init(unsigned int cpu)
 	int i, bit;
 	uint32_t data;
 	uint32_t node = cpu_to_eio_node(cpu);
-	uint32_t index = eiointc_index(node);
+	int index = eiointc_index(node);
 
 	if (index < 0) {
 		pr_err("Error: invalid nodemap!\n");