linux-kernel - [PATCH] cdx: Fix device node reference leak in cdx_msi_domain

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Message-Id: <20250902084933.2418264-1-linmq006@gmail.com>
Date: Tue,  2 Sep 2025 16:49:33 +0800
From: Miaoqian Lin <linmq006@...il.com>
To: Nipun Gupta <nipun.gupta@....com>,
	Nikhil Agarwal <nikhil.agarwal@....com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Abhijit Gangurde <abhijit.gangurde@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@....com>,
	linux-kernel@...r.kernel.org
Cc: linmq006@...il.com,
	stable@...r.kernel.org
Subject: [PATCH] cdx: Fix device node reference leak in cdx_msi_domain_init

Add missing of_node_put() call to release
the device node reference obtained via of_parse_phandle().

Fixes: 0e439ba38e61 ("cdx: add MSI support for CDX bus")
Cc: stable@...r.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
 drivers/cdx/cdx_msi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cdx/cdx_msi.c b/drivers/cdx/cdx_msi.c
index 3388a5d1462c..91b95422b263 100644
--- a/drivers/cdx/cdx_msi.c
+++ b/drivers/cdx/cdx_msi.c
@@ -174,6 +174,7 @@ struct irq_domain *cdx_msi_domain_init(struct device *dev)
 	}
 
 	parent = irq_find_matching_fwnode(of_fwnode_handle(parent_node), DOMAIN_BUS_NEXUS);
+	of_node_put(parent_node);
 	if (!parent || !msi_get_domain_info(parent)) {
 		dev_err(dev, "unable to locate ITS domain\n");
 		return NULL;
-- 
2.35.1