mm: memblock: fix wrong memmove size in memblock_merge_regions()

[linux-beck.git] / mm / memblock.c

diff --git a/mm/memblock.c b/mm/memblock.c
index 625905523c2a1592f539c46f6721723d62376648..88adc8afb6103d6c1ba2eb7e20c1ed226cf2b1d3 100644 (file)
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -314,7 +314,8 @@ static void __init_memblock memblock_merge_regions(struct memblock_type *type)
                }
 
                this->size += next->size;
-               memmove(next, next + 1, (type->cnt - (i + 1)) * sizeof(*next));
+               /* move forward from next + 1, index of which is i + 2 */
+               memmove(next, next + 1, (type->cnt - (i + 2)) * sizeof(*next));
                type->cnt--;
        }
 }