From: Miaoqian Lin <linmq006@gmail.com>
Date: Mon, 2 Jan 2023 08:42:08 +0000 (+0400)
Subject: irqchip/irq-mvebu-gicp: Fix refcount leak in mvebu_gicp_probe
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=88cb93d3a16f706bd7213f8a5882c394e5d10c4e;p=linux.git

irqchip/irq-mvebu-gicp: Fix refcount leak in mvebu_gicp_probe

[ Upstream commit 9419e700021a393f67be36abd0c4f3acc6139041 ]

of_irq_find_parent() returns a node pointer with refcount incremented,
We should use of_node_put() on it when not needed anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: a68a63cb4dfc ("irqchip/irq-mvebu-gicp: Add new driver for Marvell GICP")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230102084208.3951758-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/irqchip/irq-mvebu-gicp.c b/drivers/irqchip/irq-mvebu-gicp.c
index fe88a782173dd..c43a345061d53 100644
--- a/drivers/irqchip/irq-mvebu-gicp.c
+++ b/drivers/irqchip/irq-mvebu-gicp.c
@@ -221,6 +221,7 @@ static int mvebu_gicp_probe(struct platform_device *pdev)
 	}
 
 	parent_domain = irq_find_host(irq_parent_dn);
+	of_node_put(irq_parent_dn);
 	if (!parent_domain) {
 		dev_err(&pdev->dev, "failed to find parent IRQ domain\n");
 		return -ENODEV;