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From: Miaoqian Lin <linmq006@gmail.com>
To: "Ryder Lee" <ryder.lee@mediatek.com>,
	"Jianjun Wang" <jianjun.wang@mediatek.com>,
	"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Matthias Brugger" <matthias.bgg@gmail.com>,
	"Chuanjia Liu" <chuanjia.liu@mediatek.com>,
	linux-pci@vger.kernel.org, linux-mediatek@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: linmq006@gmail.com
Subject: [PATCH] PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup
Date: Wed,  9 Mar 2022 09:19:52 +0000	[thread overview]
Message-ID: <20220309091953.5630-1-linmq006@gmail.com> (raw)

The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.

Fixes: 87e8657ba99c ("PCI: mediatek: Add new method to get shared pcie-cfg base address")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/pci/controller/pcie-mediatek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index ddfbd4aebdec..be8bd919cb88 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -1008,6 +1008,7 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie)
 					   "mediatek,generic-pciecfg");
 	if (cfg_node) {
 		pcie->cfg = syscon_node_to_regmap(cfg_node);
+		of_node_put(cfg_node);
 		if (IS_ERR(pcie->cfg))
 			return PTR_ERR(pcie->cfg);
 	}
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Miaoqian Lin <linmq006@gmail.com>
To: "Ryder Lee" <ryder.lee@mediatek.com>,
	"Jianjun Wang" <jianjun.wang@mediatek.com>,
	"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Matthias Brugger" <matthias.bgg@gmail.com>,
	"Chuanjia Liu" <chuanjia.liu@mediatek.com>,
	linux-pci@vger.kernel.org, linux-mediatek@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: linmq006@gmail.com
Subject: [PATCH] PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup
Date: Wed,  9 Mar 2022 09:19:52 +0000	[thread overview]
Message-ID: <20220309091953.5630-1-linmq006@gmail.com> (raw)

The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.

Fixes: 87e8657ba99c ("PCI: mediatek: Add new method to get shared pcie-cfg base address")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/pci/controller/pcie-mediatek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index ddfbd4aebdec..be8bd919cb88 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -1008,6 +1008,7 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie)
 					   "mediatek,generic-pciecfg");
 	if (cfg_node) {
 		pcie->cfg = syscon_node_to_regmap(cfg_node);
+		of_node_put(cfg_node);
 		if (IS_ERR(pcie->cfg))
 			return PTR_ERR(pcie->cfg);
 	}
-- 
2.17.1


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

WARNING: multiple messages have this Message-ID (diff)
From: Miaoqian Lin <linmq006@gmail.com>
To: "Ryder Lee" <ryder.lee@mediatek.com>,
	"Jianjun Wang" <jianjun.wang@mediatek.com>,
	"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Matthias Brugger" <matthias.bgg@gmail.com>,
	"Chuanjia Liu" <chuanjia.liu@mediatek.com>,
	linux-pci@vger.kernel.org, linux-mediatek@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: linmq006@gmail.com
Subject: [PATCH] PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup
Date: Wed,  9 Mar 2022 09:19:52 +0000	[thread overview]
Message-ID: <20220309091953.5630-1-linmq006@gmail.com> (raw)

The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.

Fixes: 87e8657ba99c ("PCI: mediatek: Add new method to get shared pcie-cfg base address")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/pci/controller/pcie-mediatek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index ddfbd4aebdec..be8bd919cb88 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -1008,6 +1008,7 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie)
 					   "mediatek,generic-pciecfg");
 	if (cfg_node) {
 		pcie->cfg = syscon_node_to_regmap(cfg_node);
+		of_node_put(cfg_node);
 		if (IS_ERR(pcie->cfg))
 			return PTR_ERR(pcie->cfg);
 	}
-- 
2.17.1


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

             reply	other threads:[~2022-03-09  9:20 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-09  9:19 Miaoqian Lin [this message]
2022-03-09  9:19 ` [PATCH] PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup Miaoqian Lin
2022-03-09  9:19 ` Miaoqian Lin
2022-03-10  6:56 ` Miles Chen
2022-03-10  6:56   ` Miles Chen
2022-03-10  6:56   ` Miles Chen
2022-03-10 14:48 ` AngeloGioacchino Del Regno
2022-03-10 14:48   ` AngeloGioacchino Del Regno
2022-03-10 14:48   ` AngeloGioacchino Del Regno
2022-03-24 21:03 ` Rob Herring
2022-03-24 21:03   ` Rob Herring
2022-03-24 21:03   ` Rob Herring
2022-04-08 14:30 ` Lorenzo Pieralisi
2022-04-08 14:30   ` Lorenzo Pieralisi
2022-04-08 14:30   ` Lorenzo Pieralisi

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