irqchip/aspeed-scu-ic: Fix irq_of_parse_and_map() return value

The irq_of_parse_and_map() returns 0 on failure, not a negative ERRNO.

Fixes: 04f605906ff0 ("irqchip: Add Aspeed SCU interrupt controller")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220423094227.33148-2-krzysztof.kozlowski@linaro.org

diff --git a/drivers/irqchip/irq-aspeed-scu-ic.c b/drivers/irqchip/irq-aspeed-scu-ic.c
index 18b77c3..279e92c 100644 (file)
--- a/drivers/irqchip/irq-aspeed-scu-ic.c
+++ b/drivers/irqchip/irq-aspeed-scu-ic.c
@@ -157,8 +157,8 @@ static int aspeed_scu_ic_of_init_common(struct aspeed_scu_ic *scu_ic,
        }
 
        irq = irq_of_parse_and_map(node, 0);
-       if (irq < 0) {
-               rc = irq;
+       if (!irq) {
+               rc = -EINVAL;
                goto err;
        }