[PATCH 1/4] iio: adc: qcom-pm8xxx-xoadc: use scoped device_for_each_child_node()

From: Javier Carrasco
Date: Thu Sep 26 2024 - 12:09:06 EST


Switch to device_for_each_child_node_scoped() to simplify the code by
removing the need for calls to fwnode_handle_put() in the error path.

This prevents possible memory leaks if new error paths are added without
the required call to fwnode_handle_put().

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
---
drivers/iio/adc/qcom-pm8xxx-xoadc.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/adc/qcom-pm8xxx-xoadc.c b/drivers/iio/adc/qcom-pm8xxx-xoadc.c
index 9e1112f5acc6..311e9a804ded 100644
--- a/drivers/iio/adc/qcom-pm8xxx-xoadc.c
+++ b/drivers/iio/adc/qcom-pm8xxx-xoadc.c
@@ -821,7 +821,6 @@ static int pm8xxx_xoadc_parse_channel(struct device *dev,

static int pm8xxx_xoadc_parse_channels(struct pm8xxx_xoadc *adc)
{
- struct fwnode_handle *child;
struct pm8xxx_chan_info *ch;
int ret;
int i;
@@ -844,16 +843,15 @@ static int pm8xxx_xoadc_parse_channels(struct pm8xxx_xoadc *adc)
return -ENOMEM;

i = 0;
- device_for_each_child_node(adc->dev, child) {
+ device_for_each_child_node_scoped(adc->dev, child) {
ch = &adc->chans[i];
ret = pm8xxx_xoadc_parse_channel(adc->dev, child,
adc->variant->channels,
&adc->iio_chans[i],
ch);
- if (ret) {
- fwnode_handle_put(child);
+ if (ret)
return ret;
- }
+
i++;
}


--
2.43.0