slub: Remove useless checks in alloc_debug_processing

Alloc debug processing is never called with a NULL object pointer.
No reason to check for NULL.

Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Christoph Lameter <clameter@sgi.com>

diff --git a/mm/slub.c b/mm/slub.c
index d7d0d86..0a5a100 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -852,7 +852,7 @@ static int alloc_debug_processing(struct kmem_cache *s, struct page *page,
        if (!check_slab(s, page))
                goto bad;
 
-       if (object && !on_freelist(s, page, object)) {
+       if (!on_freelist(s, page, object)) {
                object_err(s, page, object, "Object already allocated");
                goto bad;
        }
@@ -862,7 +862,7 @@ static int alloc_debug_processing(struct kmem_cache *s, struct page *page,
                goto bad;
        }
 
-       if (object && !check_object(s, page, object, 0))
+       if (!check_object(s, page, object, 0))
                goto bad;
 
        /* Success perform special debug activities for allocs */