thermal: qcom-spmi-adc-tm5: Simplify with scoped for each OF child loop

Use scoped for_each_available_child_of_node_scoped() when iterating over
device nodes to make code a bit simpler.

Reviewed-by: Chen-Yu Tsai <[e-mail]>
Reviewed-by: Jonathan Cameron <[e-mail]>
Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Rafael J. Wysocki <[e-mail]>

drivers/thermal/qcom/qcom-spmi-adc-tm5.c

···
 static int adc_tm5_get_dt_data(struct adc_tm5_chip *adc_tm, struct device_node *node)
 {
 	struct adc_tm5_channel *channels;
-	struct device_node *child;
 	u32 value;
 	int ret;
 	struct device *dev = adc_tm->dev;
···
 		adc_tm->avg_samples = VADC_DEF_AVG_SAMPLES;
 	}
 
-	for_each_available_child_of_node(node, child) {
+	for_each_available_child_of_node_scoped(node, child) {
 		ret = adc_tm5_get_dt_channel_data(adc_tm, channels, child);
-		if (ret) {
-			of_node_put(child);
+		if (ret)
 			return ret;
-		}
 
 		channels++;
 	}