mm: fix some spelling

Fix up trivial spelling errors, noticed while reading the code.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/slab.h b/mm/slab.h
index 6c7f16a..e880bbe 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -172,7 +172,7 @@
 /*
  * Generic implementation of bulk operations
  * These are useful for situations in which the allocator cannot
- * perform optimizations. In that case segments of the objecct listed
+ * perform optimizations. In that case segments of the object listed
  * may be allocated or freed using these operations.
  */
 void __kmem_cache_free_bulk(struct kmem_cache *, size_t, void **);