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Subject[PATCH] iio: adc: gyroadc: fix leak of device node iterator
Add missing of_node_put calls for the error paths of the
for_each_child_of_node loop in rcar_gyroadc_parse_subdevs.

Thought about adding an "goto err_of_node_put" instead, but as the error
paths are quite divergent, I'm not sure if that wouldn't complicate
things.

Fixes: 059c53b32329 ("iio: adc: Add Renesas GyroADC driver")
Signed-off-by: Tobias Jordan <kernel@cdqe.de>
---
drivers/iio/adc/rcar-gyroadc.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/iio/adc/rcar-gyroadc.c b/drivers/iio/adc/rcar-gyroadc.c
index dcaefc108ff6..3746b0276b80 100644
--- a/drivers/iio/adc/rcar-gyroadc.c
+++ b/drivers/iio/adc/rcar-gyroadc.c
@@ -357,6 +357,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
num_channels = ARRAY_SIZE(rcar_gyroadc_iio_channels_3);
break;
default:
+ of_node_put(child);
return -EINVAL;
}

@@ -374,6 +375,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
dev_err(dev,
"Failed to get child reg property of ADC \"%pOFn\".\n",
child);
+ of_node_put(child);
return ret;
}

@@ -382,6 +384,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
dev_err(dev,
"Only %i channels supported with %pOFn, but reg = <%i>.\n",
num_channels, child, reg);
+ of_node_put(child);
return -EINVAL;
}
}
@@ -391,6 +394,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
dev_err(dev,
"Channel %i uses different ADC mode than the rest.\n",
reg);
+ of_node_put(child);
return -EINVAL;
}

@@ -401,6 +405,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
if (IS_ERR(vref)) {
dev_dbg(dev, "Channel %i 'vref' supply not connected.\n",
reg);
+ of_node_put(child);
return PTR_ERR(vref);
}

--
2.20.1
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