irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value

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

Fixes: f48e699ddf70 ("irqchip/aspeed-i2c-ic: Add I2C IRQ controller for Aspeed")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220423094227.33148-1-krzysztof.kozlowski@linaro.org

diff --git a/drivers/irqchip/irq-aspeed-i2c-ic.c b/drivers/irqchip/irq-aspeed-i2c-ic.c
index a47db16..9c9fc3e 100644 (file)
--- a/drivers/irqchip/irq-aspeed-i2c-ic.c
+++ b/drivers/irqchip/irq-aspeed-i2c-ic.c
@@ -77,8 +77,8 @@ static int __init aspeed_i2c_ic_of_init(struct device_node *node,
        }
 
        i2c_ic->parent_irq = irq_of_parse_and_map(node, 0);
-       if (i2c_ic->parent_irq < 0) {
-               ret = i2c_ic->parent_irq;
+       if (!i2c_ic->parent_irq) {
+               ret = -EINVAL;
                goto err_iounmap;
        }