LU-4629 llite: fix suspicious dereference (merge issue)

LU-4629 llite: fix suspicious dereference (merge issue)

Suspicious dereference of pointer 'lfd' before NULL check at line 286

Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Change-Id: I64c652279abb8fa1e720d23d645f74f07e5237ca
Reviewed-on: http://review.whamcloud.com/9273
Tested-by: Jenkins
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>