linux-kernel - [PATCH] irqchip/loongson-liointc: Fix an error handling path in liointc

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Message-Id: <1a6d74ab70712279023aa7bdbd31bd3aec103bc0.1659382063.git.christophe.jaillet@wanadoo.fr>
Date:   Mon,  1 Aug 2022 21:28:07 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Huacai Chen <chenhuacai@...nel.org>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Jianmin Lv <lvjianmin@...ngson.cn>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        linux-mips@...r.kernel.org
Subject: [PATCH] irqchip/loongson-liointc: Fix an error handling path in liointc_init()

All errors lead to the error handling path, except this one.
Fix it and release some resources before returning if this test fails.

Fixes: 0858ed035a85 ("irqchip/loongson-liointc: Add ACPI init support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/irqchip/irq-loongson-liointc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c
index c4f3c886ad61..8ab59b658913 100644
--- a/drivers/irqchip/irq-loongson-liointc.c
+++ b/drivers/irqchip/irq-loongson-liointc.c
@@ -207,7 +207,7 @@ static int liointc_init(phys_addr_t addr, unsigned long size, int revision,
 					"reg-names", core_reg_names[i]);
 
 			if (index < 0)
-				return -EINVAL;
+				goto out_iounmap;
 
 			priv->core_isr[i] = of_iomap(node, index);
 		}
-- 
2.34.1