ARM: EXYNOS: Add missing of_node_put() when parsing power domains

Add missing of_node_put() to:
1. Error return path if allocating memory for exynos_pm_domain failed.
2. Second iteration over power domains if a child domain was not
   present or was incomplete.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reported-by: Karol Wrona <k.wrona@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>

arch/arm/mach-exynos/pm_domains.c

@@ -138,6 +138,7 @@ static __init int exynos4_pm_init_power_domain(void)
 		if (!pd) {
 			pr_err("%s: failed to allocate memory for domain\n",
 					__func__);
+			of_node_put(np);
 			return -ENOMEM;
 		}
 
@@ -209,22 +210,23 @@ static __init int exynos4_pm_init_power_domain(void)
 		args.args_count = 0;
 		child_domain = of_genpd_get_from_provider(&args);
 		if (IS_ERR(child_domain))
-			continue;
+			goto next_pd;
 
 		if (of_parse_phandle_with_args(np, "power-domains",
 					 "#power-domain-cells", 0, &args) != 0)
-			continue;
+			goto next_pd;
 
 		parent_domain = of_genpd_get_from_provider(&args);
 		if (IS_ERR(parent_domain))
-			continue;
+			goto next_pd;
 
 		if (pm_genpd_add_subdomain(parent_domain, child_domain))
 			pr_warn("%s failed to add subdomain: %s\n",
 				parent_domain->name, child_domain->name);
 		else
 			pr_info("%s has as child subdomain: %s.\n",
 				parent_domain->name, child_domain->name);
+next_pd:
 		of_node_put(np);
 	}