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From: Miaoqian Lin <linmq006@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: linmq006@gmail.com, Chun-Kuang Hu <chunkuang.hu@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Vinod Koul <vkoul@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	dri-devel@lists.freedesktop.org,
	linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] phy: mediatek: Fix missing check in mtk_mipi_tx_probe
Date: Fri, 24 Dec 2021 08:21:03 +0000	[thread overview]
Message-ID: <20211224082103.7658-1-linmq006@gmail.com> (raw)

The of_device_get_match_data() function may return NULL.
Add check to prevent potential null dereference.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
index 28ad9403c441..67b005d5b9e3 100644
--- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
+++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
@@ -146,6 +146,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mipi_tx->driver_data = of_device_get_match_data(dev);
+	if (!mipi_tx->driver_data)
+		return -ENODEV;
 
 	mipi_tx->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mipi_tx->regs))
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Miaoqian Lin <linmq006@gmail.com>
Cc: linmq006@gmail.com, Chun-Kuang Hu <chunkuang.hu@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Vinod Koul <vkoul@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	dri-devel@lists.freedesktop.org,
	linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] phy: mediatek: Fix missing check in mtk_mipi_tx_probe
Date: Fri, 24 Dec 2021 08:21:03 +0000	[thread overview]
Message-ID: <20211224082103.7658-1-linmq006@gmail.com> (raw)

The of_device_get_match_data() function may return NULL.
Add check to prevent potential null dereference.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
index 28ad9403c441..67b005d5b9e3 100644
--- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
+++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
@@ -146,6 +146,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mipi_tx->driver_data = of_device_get_match_data(dev);
+	if (!mipi_tx->driver_data)
+		return -ENODEV;
 
 	mipi_tx->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mipi_tx->regs))
-- 
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>
Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>,
	linmq006@gmail.com, linux-phy@lists.infradead.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Vinod Koul <vkoul@kernel.org>,
	linux-mediatek@lists.infradead.org,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH] phy: mediatek: Fix missing check in mtk_mipi_tx_probe
Date: Fri, 24 Dec 2021 08:21:03 +0000	[thread overview]
Message-ID: <20211224082103.7658-1-linmq006@gmail.com> (raw)

The of_device_get_match_data() function may return NULL.
Add check to prevent potential null dereference.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
index 28ad9403c441..67b005d5b9e3 100644
--- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
+++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
@@ -146,6 +146,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mipi_tx->driver_data = of_device_get_match_data(dev);
+	if (!mipi_tx->driver_data)
+		return -ENODEV;
 
 	mipi_tx->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mipi_tx->regs))
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Miaoqian Lin <linmq006@gmail.com>
Cc: linmq006@gmail.com, Chun-Kuang Hu <chunkuang.hu@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Vinod Koul <vkoul@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	dri-devel@lists.freedesktop.org,
	linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] phy: mediatek: Fix missing check in mtk_mipi_tx_probe
Date: Fri, 24 Dec 2021 08:21:03 +0000	[thread overview]
Message-ID: <20211224082103.7658-1-linmq006@gmail.com> (raw)

The of_device_get_match_data() function may return NULL.
Add check to prevent potential null dereference.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
index 28ad9403c441..67b005d5b9e3 100644
--- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
+++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
@@ -146,6 +146,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mipi_tx->driver_data = of_device_get_match_data(dev);
+	if (!mipi_tx->driver_data)
+		return -ENODEV;
 
 	mipi_tx->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mipi_tx->regs))
-- 
2.17.1


-- 
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy

WARNING: multiple messages have this Message-ID (diff)
From: Miaoqian Lin <linmq006@gmail.com>
Cc: linmq006@gmail.com, Chun-Kuang Hu <chunkuang.hu@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Vinod Koul <vkoul@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	dri-devel@lists.freedesktop.org,
	linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] phy: mediatek: Fix missing check in mtk_mipi_tx_probe
Date: Fri, 24 Dec 2021 08:21:03 +0000	[thread overview]
Message-ID: <20211224082103.7658-1-linmq006@gmail.com> (raw)

The of_device_get_match_data() function may return NULL.
Add check to prevent potential null dereference.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
index 28ad9403c441..67b005d5b9e3 100644
--- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
+++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
@@ -146,6 +146,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mipi_tx->driver_data = of_device_get_match_data(dev);
+	if (!mipi_tx->driver_data)
+		return -ENODEV;
 
 	mipi_tx->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mipi_tx->regs))
-- 
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:[~2021-12-24  8:21 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-24  8:21 Miaoqian Lin [this message]
2021-12-24  8:21 ` [PATCH] phy: mediatek: Fix missing check in mtk_mipi_tx_probe Miaoqian Lin
2021-12-24  8:21 ` Miaoqian Lin
2021-12-24  8:21 ` Miaoqian Lin
2021-12-24  8:21 ` Miaoqian Lin
2021-12-24  9:55 ` AngeloGioacchino Del Regno
2021-12-24  9:55   ` AngeloGioacchino Del Regno
2021-12-24  9:55   ` AngeloGioacchino Del Regno
2021-12-24  9:55   ` AngeloGioacchino Del Regno
2021-12-24  9:55   ` AngeloGioacchino Del Regno
2021-12-30  1:56 ` Chunfeng Yun
2021-12-30  1:56   ` Chunfeng Yun
2021-12-30  1:56   ` Chunfeng Yun
2021-12-30  1:56   ` Chunfeng Yun
2021-12-30  1:56   ` Chunfeng Yun
2021-12-30 16:31 ` Chun-Kuang Hu
2021-12-30 16:31   ` Chun-Kuang Hu
2021-12-30 16:31   ` Chun-Kuang Hu
2021-12-30 16:31   ` Chun-Kuang Hu
2021-12-30 16:31   ` Chun-Kuang Hu
2022-01-06 12:16   ` Miaoqian Lin
2022-01-06 12:16     ` Miaoqian Lin
2022-01-06 12:16     ` Miaoqian Lin
2022-01-06 12:16     ` Miaoqian Lin
2022-01-06 12:16     ` Miaoqian Lin

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