dequeue_huge_page() warning fix

mm/hugetlb.c: In function `dequeue_huge_page':
mm/hugetlb.c:72: warning: 'nid' might be used uninitialized in this function

Cc: Christoph Lameter <clameter@sgi.com>
Cc: Adam Litke <agl@us.ibm.com>
Cc: David Gibson <hermes@gibson.dropbear.id.au>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 10 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index c4a573b857bd..15fc7b000772 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -78,16 +78,13 @@ static struct page *dequeue_huge_page(struct vm_area_struct *vma,
         for (z = zonelist->zones; *z; z++) {
                 nid = zone_to_nid(*z);
                 if (cpuset_zone_allowed_softwall(*z, htlb_alloc_mask) &&
-                    !list_empty(&hugepage_freelists[nid]))
-                        break;
-        }
-
-        if (*z) {
-                page = list_entry(hugepage_freelists[nid].next,
-                                  struct page, lru);
-                list_del(&page->lru);
-                free_huge_pages--;
-                free_huge_pages_node[nid]--;
+                    !list_empty(&hugepage_freelists[nid])) {
+                        page = list_entry(hugepage_freelists[nid].next,
+                                          struct page, lru);
+                        list_del(&page->lru);
+                        free_huge_pages--;
+                        free_huge_pages_node[nid]--;
+                }
         }
         return page;
 }