linux-kernel - [PATCH] mfd: mt6358-irq: Fix missing irq_domain

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Message-ID: <20251118121427.583-1-vulab@iscas.ac.cn>
Date: Tue, 18 Nov 2025 20:14:27 +0800
From: Haotian Zhang <vulab@...as.ac.cn>
To: lee@...nel.org,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com
Cc: linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	Haotian Zhang <vulab@...as.ac.cn>
Subject: [PATCH] mfd: mt6358-irq: Fix missing irq_domain_remove() in error path

If devm_request_threaded_irq() fails after irq_domain_add_linear()
succeeds in mt6358_irq_init(), the function returns without removing
the created IRQ domain, leading to a resource leak.

Call irq_domain_remove() in the error path after a successful
irq_domain_add_linear() to properly release the IRQ domain.

Fixes: 2b91c28f2abd ("mfd: Add support for the MediaTek MT6358 PMIC")
Signed-off-by: Haotian Zhang <vulab@...as.ac.cn>
---
 drivers/mfd/mt6358-irq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/mt6358-irq.c b/drivers/mfd/mt6358-irq.c
index f467b00d2366..74cf20843044 100644
--- a/drivers/mfd/mt6358-irq.c
+++ b/drivers/mfd/mt6358-irq.c
@@ -285,6 +285,7 @@ int mt6358_irq_init(struct mt6397_chip *chip)
 	if (ret) {
 		dev_err(chip->dev, "Failed to register IRQ=%d, ret=%d\n",
 			chip->irq, ret);
+		irq_domain_remove(chip->irq_domain);
 		return ret;
 	}
 
-- 
2.50.1.windows.1