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From: Miaoqian Lin <linmq006@gmail.com>
To: Krzysztof Halasa <khalasa@piap.pl>,
	Russell King <linux@armlinux.org.uk>,
	Arnd Bergmann <arnd@arndb.de>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: linmq006@gmail.com
Subject: [PATCH] ARM: cns3xxx: Fix refcount leak in cns3xxx_init
Date: Sun,  5 Jun 2022 11:58:41 +0400	[thread overview]
Message-ID: <20220605075841.19929-1-linmq006@gmail.com> (raw)

of_find_compatible_node() 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: 415f59142d9d ("ARM: cns3xxx: initial DT support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 arch/arm/mach-cns3xxx/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
index e4f4b20b83a2..3fc4ec830e3a 100644
--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
@@ -372,6 +372,7 @@ static void __init cns3xxx_init(void)
 		/* De-Asscer SATA Reset */
 		cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SATA));
 	}
+	of_node_put(dn);
 
 	dn = of_find_compatible_node(NULL, NULL, "cavium,cns3420-sdhci");
 	if (of_device_is_available(dn)) {
@@ -385,6 +386,7 @@ static void __init cns3xxx_init(void)
 		cns3xxx_pwr_clk_en(CNS3XXX_PWR_CLK_EN(SDIO));
 		cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SDIO));
 	}
+	of_node_put(dn);
 
 	pm_power_off = cns3xxx_power_off;
 
-- 
2.25.1


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WARNING: multiple messages have this Message-ID (diff)
From: Miaoqian Lin <linmq006@gmail.com>
To: Krzysztof Halasa <khalasa@piap.pl>,
	Russell King <linux@armlinux.org.uk>,
	Arnd Bergmann <arnd@arndb.de>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: linmq006@gmail.com
Subject: [PATCH] ARM: cns3xxx: Fix refcount leak in cns3xxx_init
Date: Sun,  5 Jun 2022 11:58:41 +0400	[thread overview]
Message-ID: <20220605075841.19929-1-linmq006@gmail.com> (raw)

of_find_compatible_node() 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: 415f59142d9d ("ARM: cns3xxx: initial DT support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 arch/arm/mach-cns3xxx/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
index e4f4b20b83a2..3fc4ec830e3a 100644
--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
@@ -372,6 +372,7 @@ static void __init cns3xxx_init(void)
 		/* De-Asscer SATA Reset */
 		cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SATA));
 	}
+	of_node_put(dn);
 
 	dn = of_find_compatible_node(NULL, NULL, "cavium,cns3420-sdhci");
 	if (of_device_is_available(dn)) {
@@ -385,6 +386,7 @@ static void __init cns3xxx_init(void)
 		cns3xxx_pwr_clk_en(CNS3XXX_PWR_CLK_EN(SDIO));
 		cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SDIO));
 	}
+	of_node_put(dn);
 
 	pm_power_off = cns3xxx_power_off;
 
-- 
2.25.1


             reply	other threads:[~2022-06-05  8:00 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-05  7:58 Miaoqian Lin [this message]
2022-06-05  7:58 ` [PATCH] ARM: cns3xxx: Fix refcount leak in cns3xxx_init Miaoqian Lin
2022-06-23  8:36 ` Krzysztof Hałasa
2022-06-23  8:36   ` Krzysztof Hałasa
2022-06-24 15:11   ` Arnd Bergmann
2022-06-24 15:11     ` Arnd Bergmann

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