irqchip/exiu: Fix the index of fwspec for IRQ type

Since fwspec->param_count of ACPI node is two, the index of IRQ type
in fwspec->param[] should be 1 rather than 2.

Fixes: 3d090a36c8c8 ("irqchip/exiu: Implement ACPI support")
Signed-off-by: Chen Baozi <chenbaozi@phytium.com.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20201117032015.11805-1-cbz@baozis.org
Cc: stable@vger.kernel.org

diff --git a/drivers/irqchip/irq-sni-exiu.c b/drivers/irqchip/irq-sni-exiu.c
index 1d02762..abd011f 100644 (file)
--- a/drivers/irqchip/irq-sni-exiu.c
+++ b/drivers/irqchip/irq-sni-exiu.c
@@ -136,7 +136,7 @@ static int exiu_domain_translate(struct irq_domain *domain,
                if (fwspec->param_count != 2)
                        return -EINVAL;
                *hwirq = fwspec->param[0];
-               *type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK;
+               *type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK;
        }
        return 0;
 }