pmdomain: rockchip: Simplify dropping OF node reference

Drop OF node reference immediately after using it in
syscon_node_to_regmap(), which is both simpler and typical/expected
code pattern.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20240825183116.102953-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Author: krzk

drivers/pmdomain/rockchip/pm-domains.c

@@ -716,12 +716,11 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
 				goto err_unprepare_clocks;
 			}
 			pd->qos_regmap[j] = syscon_node_to_regmap(qos_node);
+			of_node_put(qos_node);
 			if (IS_ERR(pd->qos_regmap[j])) {
 				error = -ENODEV;
-				of_node_put(qos_node);
 				goto err_unprepare_clocks;
 			}
-			of_node_put(qos_node);
 		}
 	}