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iio: adc: berlin2-adc: Add missing of_node_put() in error path

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commit cbd3a0153c upstream.

of_get_parent() will return a device_node pointer with refcount
incremented. We need to use of_node_put() on it when done. Add the
missing of_node_put() in the error path of berlin2_adc_probe();

Fixes: 70f1937911 ("iio: adc: add support for Berlin")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/20221129020316.191731-1-wangxiongfeng2@huawei.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xiongfeng Wang 2022-11-29 10:03:16 +08:00 • committed by Greg Kroah-Hartman
commit 5602f6a244
1 changed files with 3 additions and 1 deletions
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4
drivers/iio/adc/berlin2-adc.c
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@ -289,8 +289,10 @@ static int berlin2_adc_probe(struct platform_device *pdev)
int ret;
indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*priv));
if (!indio_dev)
if (!indio_dev) {
of_node_put(parent_np);
return -ENOMEM;
}
priv = iio_priv(indio_dev);
platform_set_drvdata(pdev, indio_dev);