Messages in this thread Patch in this message | | | Date | Fri, 7 Jul 2017 01:46:30 -0500 | From | "Gustavo A. R. Silva" <> | Subject | [PATCH] iio: adc: meson-saradc: add NULL check on of_match_device() return value |
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Check return value from call to of_match_device() in order to prevent a NULL pointer dereference.
In case of NULL print error message and return -ENODEV
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> --- drivers/iio/adc/meson_saradc.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 83da50e..07dbcc3 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -915,6 +915,11 @@ static int meson_sar_adc_probe(struct platform_device *pdev) init_completion(&priv->done); match = of_match_device(meson_sar_adc_of_match, &pdev->dev); + if (!match) { + dev_err(&pdev->dev, "failed to match device\n"); + return -ENODEV; + } + priv->data = match->data; indio_dev->name = priv->data->name; -- 2.5.0
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