[PATCH] thermal/drivers/sprd: Use for_each_child_of_node_scoped() in probe

From: Felix Gu

Date: Wed Apr 15 2026 - 11:12:11 EST


Use for_each_child_of_node_scoped() to avoid manual cleanup
of_node_put() in early exits from the loop, simplify the code.

Signed-off-by: Felix Gu <ustc.gu@xxxxxxxxx>
---
drivers/thermal/sprd_thermal.c | 25 ++++++++-----------------
1 file changed, 8 insertions(+), 17 deletions(-)

diff --git a/drivers/thermal/sprd_thermal.c b/drivers/thermal/sprd_thermal.c
index d683fcb0f8ab..069bc13ffc57 100644
--- a/drivers/thermal/sprd_thermal.c
+++ b/drivers/thermal/sprd_thermal.c
@@ -331,7 +331,6 @@ static void sprd_thm_toggle_sensor(struct sprd_thermal_sensor *sen, bool on)
static int sprd_thm_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
- struct device_node *sen_child;
struct sprd_thermal_data *thm;
struct sprd_thermal_sensor *sen;
const struct sprd_thm_variant_data *pdata;
@@ -380,12 +379,10 @@ static int sprd_thm_probe(struct platform_device *pdev)
if (ret)
return ret;

- for_each_child_of_node(np, sen_child) {
+ for_each_child_of_node_scoped(np, sen_child) {
sen = devm_kzalloc(&pdev->dev, sizeof(*sen), GFP_KERNEL);
- if (!sen) {
- ret = -ENOMEM;
- goto of_put;
- }
+ if (!sen)
+ return -ENOMEM;

sen->data = thm;
sen->dev = &pdev->dev;
@@ -393,13 +390,13 @@ static int sprd_thm_probe(struct platform_device *pdev)
ret = of_property_read_u32(sen_child, "reg", &sen->id);
if (ret) {
dev_err(&pdev->dev, "get sensor reg failed");
- goto of_put;
+ return ret;
}

ret = sprd_thm_sensor_calibration(sen_child, thm, sen);
if (ret) {
dev_err(&pdev->dev, "efuse cal analysis failed");
- goto of_put;
+ return ret;
}

sprd_thm_sensor_init(thm, sen);
@@ -411,31 +408,25 @@ static int sprd_thm_probe(struct platform_device *pdev)
if (IS_ERR(sen->tzd)) {
dev_err(&pdev->dev, "register thermal zone failed %d\n",
sen->id);
- ret = PTR_ERR(sen->tzd);
- goto of_put;
+ return PTR_ERR(sen->tzd);
}

thm->sensor[sen->id] = sen;
}
- /* sen_child set to NULL at this point */

ret = sprd_thm_set_ready(thm);
if (ret)
- goto of_put;
+ return ret;

ret = sprd_thm_wait_temp_ready(thm);
if (ret)
- goto of_put;
+ return ret;

for (i = 0; i < thm->nr_sensors; i++)
sprd_thm_toggle_sensor(thm->sensor[i], true);

platform_set_drvdata(pdev, thm);
return 0;
-
-of_put:
- of_node_put(sen_child);
- return ret;
}

#ifdef CONFIG_PM_SLEEP

---
base-commit: 936c21068d7ade00325e40d82bfd2f3f29d9f659
change-id: 20260415-sprd-3034c3aa9649

Best regards,
--
Felix Gu <ustc.gu@xxxxxxxxx>