soc: qcom: ice: use scoped device node handling to simplify error paths

Obtain the device node reference with scoped/cleanup.h to reduce error
handling and make the code a bit simpler.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240813-b4-cleanup-h-of-node-put-other-v1-3-cfb67323a95c@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

drivers/soc/qcom/ice.c

@@ -8,6 +8,7 @@
  */
 
 #include <linux/bitfield.h>
+#include <linux/cleanup.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/iopoll.h>
@@ -265,7 +266,6 @@ struct qcom_ice *of_qcom_ice_get(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct qcom_ice *ice;
-	struct device_node *node;
 	struct resource *res;
 	void __iomem *base;
 
@@ -292,15 +292,15 @@ struct qcom_ice *of_qcom_ice_get(struct device *dev)
 	 * (legacy DT binding), then it must at least provide a phandle
 	 * to the ICE devicetree node, otherwise ICE is not supported.
 	 */
-	node = of_parse_phandle(dev->of_node, "qcom,ice", 0);
+	struct device_node *node __free(device_node) = of_parse_phandle(dev->of_node,
+									"qcom,ice", 0);
 	if (!node)
 		return NULL;
 
 	pdev = of_find_device_by_node(node);
 	if (!pdev) {
 		dev_err(dev, "Cannot find device node %s\n", node->name);
-		ice = ERR_PTR(-EPROBE_DEFER);
-		goto out;
+		return ERR_PTR(-EPROBE_DEFER);
 	}
 
 	ice = platform_get_drvdata(pdev);
@@ -308,8 +308,7 @@ struct qcom_ice *of_qcom_ice_get(struct device *dev)
 		dev_err(dev, "Cannot get ice instance from %s\n",
 			dev_name(&pdev->dev));
 		platform_device_put(pdev);
-		ice = ERR_PTR(-EPROBE_DEFER);
-		goto out;
+		return ERR_PTR(-EPROBE_DEFER);
 	}
 
 	ice->link = device_link_add(dev, &pdev->dev, DL_FLAG_AUTOREMOVE_SUPPLIER);
@@ -321,9 +320,6 @@ struct qcom_ice *of_qcom_ice_get(struct device *dev)
 		ice = ERR_PTR(-EINVAL);
 	}
 
-out:
-	of_node_put(node);
-
 	return ice;
 }
 EXPORT_SYMBOL_GPL(of_qcom_ice_get);