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From: Miaoqian Lin <linmq006@gmail.com>
To: Linus Walleij <linus.walleij@linaro.org>,
	Lee Jones <lee.jones@linaro.org>,
	linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: linmq006@gmail.com
Subject: [PATCH] pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe
Date: Mon,  7 Mar 2022 11:51:16 +0000	[thread overview]
Message-ID: <20220307115116.25316-1-linmq006@gmail.com> (raw)

This node pointer is returned by of_parse_phandle() with refcount
incremented in this function. Calling of_node_put() to avoid
the refcount leak.

Fixes: 32e67eee670e ("pinctrl: nomadik: Allow prcm_base to be extracted from Device Tree")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/pinctrl/nomadik/pinctrl-nomadik.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index 39828e9c3120..4757bf964d3c 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -1883,8 +1883,10 @@ static int nmk_pinctrl_probe(struct platform_device *pdev)
 	}
 
 	prcm_np = of_parse_phandle(np, "prcm", 0);
-	if (prcm_np)
+	if (prcm_np) {
 		npct->prcm_base = of_iomap(prcm_np, 0);
+		of_node_put(prcm_np);
+	}
 	if (!npct->prcm_base) {
 		if (version == PINCTRL_NMK_STN8815) {
 			dev_info(&pdev->dev,
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Miaoqian Lin <linmq006@gmail.com>
To: Linus Walleij <linus.walleij@linaro.org>,
	Lee Jones <lee.jones@linaro.org>,
	linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: linmq006@gmail.com
Subject: [PATCH] pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe
Date: Mon,  7 Mar 2022 11:51:16 +0000	[thread overview]
Message-ID: <20220307115116.25316-1-linmq006@gmail.com> (raw)

This node pointer is returned by of_parse_phandle() with refcount
incremented in this function. Calling of_node_put() to avoid
the refcount leak.

Fixes: 32e67eee670e ("pinctrl: nomadik: Allow prcm_base to be extracted from Device Tree")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/pinctrl/nomadik/pinctrl-nomadik.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index 39828e9c3120..4757bf964d3c 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -1883,8 +1883,10 @@ static int nmk_pinctrl_probe(struct platform_device *pdev)
 	}
 
 	prcm_np = of_parse_phandle(np, "prcm", 0);
-	if (prcm_np)
+	if (prcm_np) {
 		npct->prcm_base = of_iomap(prcm_np, 0);
+		of_node_put(prcm_np);
+	}
 	if (!npct->prcm_base) {
 		if (version == PINCTRL_NMK_STN8815) {
 			dev_info(&pdev->dev,
-- 
2.17.1


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             reply	other threads:[~2022-03-07 11:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-07 11:51 Miaoqian Lin [this message]
2022-03-07 11:51 ` [PATCH] pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe Miaoqian Lin
2022-03-15  1:23 ` Linus Walleij
2022-03-15  1:23   ` Linus Walleij

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