LU-4826 lmv: cleanup req in lmv_getattr_name()

LU-4826 lmv: cleanup req in lmv_getattr_name()

In lmv_getattr_name() don't return a freed request in the error path.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I64f3e2b30bebe4dfb5f58651a92a3f08108af17b
Reviewed-on: http://review.whamcloud.com/9863
Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>