regulator: qcom-smd: 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.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240814-cleanup-h-of-node-put-regulator-v1-6-87151088b883@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/qcom_smd-regulator.c

@@ -1435,7 +1435,6 @@ static int rpm_reg_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	const struct rpm_regulator_data *vreg_data;
-	struct device_node *node;
 	struct qcom_rpm_reg *vreg;
 	struct qcom_smd_rpm *rpm;
 	int ret;
@@ -1455,19 +1454,15 @@ static int rpm_reg_probe(struct platform_device *pdev)
 	if (!vreg_data)
 		return -ENODEV;
 
-	for_each_available_child_of_node(dev->of_node, node) {
+	for_each_available_child_of_node_scoped(dev->of_node, node) {
 		vreg = devm_kzalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
-		if (!vreg) {
-			of_node_put(node);
+		if (!vreg)
 			return -ENOMEM;
-		}
 
 		ret = rpm_regulator_init_vreg(vreg, dev, node, vreg_data);
-		if (ret < 0) {
-			of_node_put(node);
+		if (ret < 0)
 			return ret;
 	}
-	}
 
 	return 0;
 }