linux-kernel - [PATCH 4.19 086/287] irqchip/aspeed-i2c-ic: Fix irq_of_parse_and

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Message-Id: <20220613094926.486177020@linuxfoundation.org>
Date:   Mon, 13 Jun 2022 12:08:30 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Marc Zyngier <maz@...nel.org>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 086/287] irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value

From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

[ Upstream commit 50f0f26e7c8665763d0d7d3372dbcf191f94d077 ]

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@...aro.org>
Signed-off-by: Marc Zyngier <maz@...nel.org>
Link: https://lore.kernel.org/r/20220423094227.33148-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/irqchip/irq-aspeed-i2c-ic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-aspeed-i2c-ic.c b/drivers/irqchip/irq-aspeed-i2c-ic.c
index f20200af0992..1274e3bc2213 100644
--- a/drivers/irqchip/irq-aspeed-i2c-ic.c
+++ b/drivers/irqchip/irq-aspeed-i2c-ic.c
@@ -82,8 +82,8 @@ 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;
 	}
 
-- 
2.35.1