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iio: adc: sun4i-gpadc: use of_device_get_match_data

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The usage of of_device_get_match_data reduce the code size a bit.
Furthermore, it prevents an improbable dereference when
of_match_device() return NULL.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Corentin Labbe 2017-10-20 07:37:29 +02:00 committed by Jonathan Cameron
parent 724330a9d6
commit 0d87a4aa37
1 changed files with 2 additions and 4 deletions
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6
drivers/iio/adc/sun4i-gpadc-iio.c
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@ -501,17 +501,15 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev,
struct iio_dev *indio_dev)
{
struct sun4i_gpadc_iio *info = iio_priv(indio_dev);
const struct of_device_id *of_dev;
struct resource *mem;
void __iomem *base;
int ret;
of_dev = of_match_device(sun4i_gpadc_of_id, &pdev->dev);
if (!of_dev)
info->data = of_device_get_match_data(&pdev->dev);
if (!info->data)
return -ENODEV;
info->no_irq = true;
info->data = (struct gpadc_data *)of_dev->data;
indio_dev->num_channels = ARRAY_SIZE(sun8i_a33_gpadc_channels);
indio_dev->channels = sun8i_a33_gpadc_channels;