slab: fix typo in allocation failure handling

This patch fixes wrong array index in allocation failure handling.

Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/slab.c b/mm/slab.c
index cfa6be4..c31cd36 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1043,7 +1043,7 @@ static struct array_cache **alloc_alien_cache(int node, int limit)
                        }
                        ac_ptr[i] = alloc_arraycache(node, limit, 0xbaadf00d);
                        if (!ac_ptr[i]) {
-                               for (i--; i <= 0; i--)
+                               for (i--; i >= 0; i--)
                                        kfree(ac_ptr[i]);
                                kfree(ac_ptr);
                                return NULL;