regulator: s2mps11: Add missing of_node_put

Add of_node_put to decrement the ref count.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

drivers/regulator/s2mps11.c

@@ -624,6 +624,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
 	}
 
 	of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num);
+	of_node_put(reg_np);
 
 common_reg:
 	platform_set_drvdata(pdev, s2mps11);