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From: Miaoqian Lin <linmq006@gmail.com>
To: Heiko Stuebner <heiko@sntech.de>,
	Miaoqian Lin <linmq006@gmail.com>,
	Douglas Anderson <dianders@chromium.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] soc: rockchip: Fix refcount leak in rockchip_grf_init
Date: Mon, 16 May 2022 11:20:10 +0400	[thread overview]
Message-ID: <20220516072013.19731-1-linmq006@gmail.com> (raw)

of_find_matching_node_and_match returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: 4c58063d4258 ("soc: rockchip: add driver handling grf setup")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/soc/rockchip/grf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soc/rockchip/grf.c b/drivers/soc/rockchip/grf.c
index 494cf2b5bf7b..343ff61ccccb 100644
--- a/drivers/soc/rockchip/grf.c
+++ b/drivers/soc/rockchip/grf.c
@@ -148,12 +148,14 @@ static int __init rockchip_grf_init(void)
 		return -ENODEV;
 	if (!match || !match->data) {
 		pr_err("%s: missing grf data\n", __func__);
+		of_node_put(np);
 		return -EINVAL;
 	}
 
 	grf_info = match->data;
 
 	grf = syscon_node_to_regmap(np);
+	of_node_put(np);
 	if (IS_ERR(grf)) {
 		pr_err("%s: could not get grf syscon\n", __func__);
 		return PTR_ERR(grf);
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Miaoqian Lin <linmq006@gmail.com>
To: Heiko Stuebner <heiko@sntech.de>,
	Miaoqian Lin <linmq006@gmail.com>,
	Douglas Anderson <dianders@chromium.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] soc: rockchip: Fix refcount leak in rockchip_grf_init
Date: Mon, 16 May 2022 11:20:10 +0400	[thread overview]
Message-ID: <20220516072013.19731-1-linmq006@gmail.com> (raw)

of_find_matching_node_and_match returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: 4c58063d4258 ("soc: rockchip: add driver handling grf setup")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/soc/rockchip/grf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soc/rockchip/grf.c b/drivers/soc/rockchip/grf.c
index 494cf2b5bf7b..343ff61ccccb 100644
--- a/drivers/soc/rockchip/grf.c
+++ b/drivers/soc/rockchip/grf.c
@@ -148,12 +148,14 @@ static int __init rockchip_grf_init(void)
 		return -ENODEV;
 	if (!match || !match->data) {
 		pr_err("%s: missing grf data\n", __func__);
+		of_node_put(np);
 		return -EINVAL;
 	}
 
 	grf_info = match->data;
 
 	grf = syscon_node_to_regmap(np);
+	of_node_put(np);
 	if (IS_ERR(grf)) {
 		pr_err("%s: could not get grf syscon\n", __func__);
 		return PTR_ERR(grf);
-- 
2.25.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID (diff)
From: Miaoqian Lin <linmq006@gmail.com>
To: Heiko Stuebner <heiko@sntech.de>,
	Miaoqian Lin <linmq006@gmail.com>,
	Douglas Anderson <dianders@chromium.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] soc: rockchip: Fix refcount leak in rockchip_grf_init
Date: Mon, 16 May 2022 11:20:10 +0400	[thread overview]
Message-ID: <20220516072013.19731-1-linmq006@gmail.com> (raw)

of_find_matching_node_and_match returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: 4c58063d4258 ("soc: rockchip: add driver handling grf setup")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/soc/rockchip/grf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soc/rockchip/grf.c b/drivers/soc/rockchip/grf.c
index 494cf2b5bf7b..343ff61ccccb 100644
--- a/drivers/soc/rockchip/grf.c
+++ b/drivers/soc/rockchip/grf.c
@@ -148,12 +148,14 @@ static int __init rockchip_grf_init(void)
 		return -ENODEV;
 	if (!match || !match->data) {
 		pr_err("%s: missing grf data\n", __func__);
+		of_node_put(np);
 		return -EINVAL;
 	}
 
 	grf_info = match->data;
 
 	grf = syscon_node_to_regmap(np);
+	of_node_put(np);
 	if (IS_ERR(grf)) {
 		pr_err("%s: could not get grf syscon\n", __func__);
 		return PTR_ERR(grf);
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2022-05-16  7:20 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-16  7:20 Miaoqian Lin [this message]
2022-05-16  7:20 ` [PATCH] soc: rockchip: Fix refcount leak in rockchip_grf_init Miaoqian Lin
2022-05-16  7:20 ` Miaoqian Lin
2022-05-17 17:45 ` Heiko Stuebner
2022-05-17 17:45   ` Heiko Stuebner
2022-05-17 17:45   ` Heiko Stuebner

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