Re: [PATCH] Thermal - Fix possible NULL derefrence.

From	Zhang Rui <rui.zhang@intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] Thermal - Fix possible NULL derefrence.
Date	2017-02-07 04:40 +0100
Message-ID	<t84Nk-5In-9@gated-at.bofh.it> (permalink)
References	<t5co1-8ip-23@gated-at.bofh.it> <t5co1-8ip-21@gated-at.bofh.it>
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Just one comment,
the subject should be 
[PATCH] Thermal: imx_thermal : Fix possible NULL derefrence

On Mon, 2017-01-30 at 10:34 +0530, Shailendra Verma wrote:
> of_device_get_match_data could return NULL, and so can cause
> a NULL pointer dereference later.
> 
> Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>

I think Eduardo will take this patch.

thanks,
rui
> ---
>  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) {

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Re: [PATCH] Thermal - Fix possible NULL derefrence. Zhang Rui <rui.zhang@intel.com> - 2017-02-07 04:40 +0100

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