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From: Chuhong Yuan <hslester96@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Daniel Mack <daniel@zonque.org>,
	Haojian Zhuang <haojian.zhuang@gmail.com>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	Mark Brown <broonie@kernel.org>,
	linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org,
	linux-kernel@vger.kernel.org, Chuhong Yuan <hslester96@gmail.com>
Subject: [PATCH v2] spi: pxa2xx: Add missed security checks
Date: Sat,  9 Nov 2019 16:09:43 +0800	[thread overview]
Message-ID: <20191109080943.30428-1-hslester96@gmail.com> (raw)

pxa2xx_spi_init_pdata misses checks for devm_clk_get and
platform_get_irq.
Add checks for them to fix the bugs.

Since ssp->clk and ssp->irq are used in probe, they are mandatory here.
So we cannot use _optional() for devm_clk_get and platform_get_irq.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
Changes in v2:
  - Modify commit message.

 drivers/spi/spi-pxa2xx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index bb6a14d1ab0f..2e73d75a6ac5 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1565,7 +1565,13 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 #endif
 
 	ssp->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(ssp->clk))
+		return NULL;
+
 	ssp->irq = platform_get_irq(pdev, 0);
+	if (ssp->irq < 0)
+		return NULL;
+
 	ssp->type = type;
 	ssp->pdev = pdev;
 	ssp->port_id = pxa2xx_spi_get_port_id(adev);
-- 
2.23.0


WARNING: multiple messages have this Message-ID (diff)
From: Chuhong Yuan <hslester96@gmail.com>
Cc: Chuhong Yuan <hslester96@gmail.com>,
	linux-kernel@vger.kernel.org,
	Haojian Zhuang <haojian.zhuang@gmail.com>,
	linux-spi@vger.kernel.org, Mark Brown <broonie@kernel.org>,
	Daniel Mack <daniel@zonque.org>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] spi: pxa2xx: Add missed security checks
Date: Sat,  9 Nov 2019 16:09:43 +0800	[thread overview]
Message-ID: <20191109080943.30428-1-hslester96@gmail.com> (raw)

pxa2xx_spi_init_pdata misses checks for devm_clk_get and
platform_get_irq.
Add checks for them to fix the bugs.

Since ssp->clk and ssp->irq are used in probe, they are mandatory here.
So we cannot use _optional() for devm_clk_get and platform_get_irq.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
Changes in v2:
  - Modify commit message.

 drivers/spi/spi-pxa2xx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index bb6a14d1ab0f..2e73d75a6ac5 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1565,7 +1565,13 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 #endif
 
 	ssp->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(ssp->clk))
+		return NULL;
+
 	ssp->irq = platform_get_irq(pdev, 0);
+	if (ssp->irq < 0)
+		return NULL;
+
 	ssp->type = type;
 	ssp->pdev = pdev;
 	ssp->port_id = pxa2xx_spi_get_port_id(adev);
-- 
2.23.0


_______________________________________________
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             reply	other threads:[~2019-11-09  8:09 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-09  8:09 Chuhong Yuan [this message]
2019-11-09  8:09 ` [PATCH v2] spi: pxa2xx: Add missed security checks Chuhong Yuan
2019-11-11 19:49 ` Applied "spi: pxa2xx: Add missed security checks" to the spi tree Mark Brown
2019-11-11 19:49   ` Mark Brown
2019-11-11 19:49   ` Mark Brown

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