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Date: Mon, 30 Jan 2017 10:34:58 +0530 From: Shailendra Verma <shailendra.v@...sung.com> To: Zhang Rui <rui.zhang@...el.com>, Eduardo Valentin <edubezval@...il.com>, linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, p.shailesh@...sung.com, ashish.kalra@...sung.com, Shailendra Verma <shailendra.v@...sung.com>, Shailendra Verma <shailendra.capricorn@...il.com> Subject: [PATCH] Thermal - Fix possible NULL derefrence. of_device_get_match_data could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <shailendra.v@...sung.com> --- drivers/thermal/imx_thermal.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c index 06912f0..fb648a4 100644 --- a/drivers/thermal/imx_thermal.c +++ b/drivers/thermal/imx_thermal.c @@ -489,6 +489,10 @@ static int imx_thermal_probe(struct platform_device *pdev) data->tempmon = map; data->socdata = of_device_get_match_data(&pdev->dev); + if (!data->socdata) { + dev_err(&pdev->dev, "no device match found\n"); + return -ENODEV; + } /* make sure the IRQ flag is clear before enabling irq on i.MX6SX */ if (data->socdata->version == TEMPMON_IMX6SX) { -- 1.7.9.5
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