interconnect: qcom: rpm: fix probe child-node error handling

Make sure to clean up and release resources properly also in case probe
fails when populating child devices.

Fixes: e39bf29 ("interconnect: icc-rpm: Support child NoC device probe")
Cc: [email protected]      # 5.17
Reviewed-by: Konrad Dybcio <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Georgi Djakov <[email protected]>

Author: jhovold

drivers/interconnect/qcom/icc-rpm.c

@@ -541,8 +541,11 @@ int qnoc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, qp);
 
 	/* Populate child NoC devices if any */
-	if (of_get_child_count(dev->of_node) > 0)
-		return of_platform_populate(dev->of_node, NULL, NULL, dev);
+	if (of_get_child_count(dev->of_node) > 0) {
+		ret = of_platform_populate(dev->of_node, NULL, NULL, dev);
+		if (ret)
+			goto err;
+	}
 
 	return 0;
 err: