soc: qcom: ocmem: 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-v1-4-cfb67323a95c@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/drivers/soc/qcom/ocmem.c b/drivers/soc/qcom/ocmem.c
index 6b6dd80cbc0f6ac83d8b4132e88ee0bfbdba9f15..ff8df7d75d6b26bf00a075b11fe338e5b82947f4 100644 (file)
--- a/drivers/soc/qcom/ocmem.c
+++ b/drivers/soc/qcom/ocmem.c
@@ -186,23 +186,20 @@ static void update_range(struct ocmem *ocmem, struct ocmem_buf *buf,
 struct ocmem *of_get_ocmem(struct device *dev)
 {
        struct platform_device *pdev;
-       struct device_node *devnode;
        struct ocmem *ocmem;
 
-       devnode = of_parse_phandle(dev->of_node, "sram", 0);
+       struct device_node *devnode __free(device_node) = of_parse_phandle(dev->of_node,
+                                                                          "sram", 0);
        if (!devnode || !devnode->parent) {
                dev_err(dev, "Cannot look up sram phandle\n");
-               of_node_put(devnode);
                return ERR_PTR(-ENODEV);
        }
 
        pdev = of_find_device_by_node(devnode->parent);
        if (!pdev) {
                dev_err(dev, "Cannot find device node %s\n", devnode->name);
-               of_node_put(devnode);
                return ERR_PTR(-EPROBE_DEFER);
        }
-       of_node_put(devnode);
 
        ocmem = platform_get_drvdata(pdev);
        if (!ocmem) {