[PATCH] Fix strange size check in __get_vm_area_node()

Recently, __get_vm_area_node() was changed like following

 	if (unlikely(!area))
 		return NULL;

-	if (unlikely(!size)) {
-		kfree (area);
+	if (unlikely(!size))
 		return NULL;
-	}

It is leaking `area', also original code seems strange already.
Probably, we wanted to do this patch.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 7dc6aa745166..86897ee792d6 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -181,14 +181,13 @@ static struct vm_struct *__get_vm_area_node(unsigned long size, unsigned long fl
         }
         addr = ALIGN(start, align);
         size = PAGE_ALIGN(size);
+        if (unlikely(!size))
+                return NULL;
 
         area = kmalloc_node(sizeof(*area), gfp_mask & GFP_LEVEL_MASK, node);
         if (unlikely(!area))
                 return NULL;
 
-        if (unlikely(!size))
-                return NULL;
-
         /*
          * We always allocate a guard page.
          */