The bug was introduced by commit 7c0cb9c6 ("mm, slab: Replace
'caller' type, void* -> unsigned long").
Reported-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NEzequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: NPekka Enberg <penberg@kernel.org>