X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=mm%2Fnobootmem.c;h=f73f2987a8523f0e40c51154b9a53ac748f476d3;hb=3b931b5e206943b6092295e3ce5a765391283c6d;hp=19121ceb8874977310e0559ad0bf8488140d59b1;hpb=f341535193c338b4ce4af8e32be51e6aae7f22a6;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 19121ce..f73f298 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -45,7 +45,9 @@ static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
 	if (!addr)
 		return NULL;
 
-	memblock_reserve(addr, size);
+	if (memblock_reserve(addr, size))
+		return NULL;
+
 	ptr = phys_to_virt(addr);
 	memset(ptr, 0, size);
 	/*
@@ -114,16 +116,27 @@ static unsigned long __init __free_memory_core(phys_addr_t start,
 static unsigned long __init free_low_memory_core_early(void)
 {
 	unsigned long count = 0;
-	phys_addr_t start, end, size;
+	phys_addr_t start, end;
 	u64 i;
 
 	for_each_free_mem_range(i, NUMA_NO_NODE, &start, &end, NULL)
 		count += __free_memory_core(start, end);
 
-	/* free range that is used for reserved array if we allocate it */
-	size = get_allocated_memblock_reserved_regions_info(&start);
-	if (size)
-		count += __free_memory_core(start, start + size);
+#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
+	{
+		phys_addr_t size;
+
+		/* Free memblock.reserved array if it was allocated */
+		size = get_allocated_memblock_reserved_regions_info(&start);
+		if (size)
+			count += __free_memory_core(start, start + size);
+
+		/* Free memblock.memory array if it was allocated */
+		size = get_allocated_memblock_memory_regions_info(&start);
+		if (size)
+			count += __free_memory_core(start, start + size);
+	}
+#endif
 
 	return count;
 }