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| author | Gustavo A. R. Silva <garsilva@embeddedor.com> | 2017-07-07 08:46:30 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2017-07-09 20:04:23 +0200 |
| commit | 2f9aeeed92a2911e8f1ec89cf7f5c16b8d054fe5 (patch) | |
| tree | 9f67676a2ad1d0f5e03bb506df5bd635bc797e7f /drivers/iio/adc/meson_saradc.c | |
| parent | staging: iio: tsl2x7x: check return value from tsl2x7x_invoke_change() (diff) | |
| download | linux-2f9aeeed92a2911e8f1ec89cf7f5c16b8d054fe5.tar.xz linux-2f9aeeed92a2911e8f1ec89cf7f5c16b8d054fe5.zip | |
iio: adc: meson-saradc: add NULL check on of_match_device() return value
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>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc/meson_saradc.c')
| -rw-r--r-- | drivers/iio/adc/meson_saradc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 83da50ed73ab..c4e904bbf168 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; |