From: Miaoqian Lin <linmq006@gmail.com>
Date: Mon, 2 Jan 2023 08:20:39 +0000 (+0400)
Subject: gpio: sifive: Fix refcount leak in sifive_gpio_probe
X-Git-Tag: v5.15.92~492
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=95da1882ce9372ba20278f87cdb7a34f9812c4b5;p=platform%2Fkernel%2Flinux-rpi.git

gpio: sifive: Fix refcount leak in sifive_gpio_probe

[ Upstream commit 694175cd8a1643cde3acb45c9294bca44a8e08e9 ]

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: 96868dce644d ("gpio/sifive: Add GPIO driver for SiFive SoCs")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/gpio/gpio-sifive.c b/drivers/gpio/gpio-sifive.c
index 7d82388..f50236e6 100644
--- a/drivers/gpio/gpio-sifive.c
+++ b/drivers/gpio/gpio-sifive.c
@@ -209,6 +209,7 @@ static int sifive_gpio_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 	parent = irq_find_host(irq_parent);
+	of_node_put(irq_parent);
 	if (!parent) {
 		dev_err(dev, "no IRQ parent domain\n");
 		return -ENODEV;