Revert "[PATCH] powerpc: Minor numa memory code cleanup"

This reverts f1fdc0117004d343698b9830e141491d5ae320d1 commit.

arch/powerpc/mm/numa.c

@@ -254,17 +254,29 @@ static int __init find_min_common_depth(void)
 	return depth;
 }
 
-static void __init get_n_mem_cells(int *n_addr_cells, int *n_size_cells)
+static int __init get_mem_addr_cells(void)
 {
 	struct device_node *memory = NULL;
+	int rc;
 
 	memory = of_find_node_by_type(memory, "memory");
-	if (memory) {
-		*n_addr_cells = prom_n_addr_cells(memory);
-		*n_size_cells = prom_n_size_cells(memory);
-		of_node_put(memory);
-	}
-	/* if (!memory) we are in trouble, let other code error out */
+	if (!memory)
+		return 0; /* it won't matter */
+
+	rc = prom_n_addr_cells(memory);
+	return rc;
+}
+
+static int __init get_mem_size_cells(void)
+{
+	struct device_node *memory = NULL;
+	int rc;
+
+	memory = of_find_node_by_type(memory, "memory");
+	if (!memory)
+		return 0; /* it won't matter */
+	rc = prom_n_size_cells(memory);
+	return rc;
 }
 
 static unsigned long __init read_n_cells(int n, unsigned int **buf)
@@ -374,7 +386,7 @@ static int __init parse_numa_properties(void)
 {
 	struct device_node *cpu = NULL;
 	struct device_node *memory = NULL;
-	int n_addr_cells, n_size_cells;
+	int addr_cells, size_cells;
 	int max_domain;
 	unsigned long i;
 
@@ -413,7 +425,8 @@ static int __init parse_numa_properties(void)
 		}
 	}
 
-	get_n_mem_cells(&n_addr_cells, &n_size_cells);
+	addr_cells = get_mem_addr_cells();
+	size_cells = get_mem_size_cells();
 	memory = NULL;
 	while ((memory = of_find_node_by_type(memory, "memory")) != NULL) {
 		unsigned long start;
@@ -430,8 +443,8 @@ static int __init parse_numa_properties(void)
 		ranges = memory->n_addrs;
 new_range:
 		/* these are order-sensitive, and modify the buffer pointer */
-		start = read_n_cells(n_addr_cells, &memcell_buf);
-		size = read_n_cells(n_size_cells, &memcell_buf);
+		start = read_n_cells(addr_cells, &memcell_buf);
+		size = read_n_cells(size_cells, &memcell_buf);
 
 		numa_domain = of_node_numa_domain(memory);