staging: lustre: lmv: Do not ignore ENOENT in lmv_unlink

Return correct value (rc) in lmv_unlink. In lmv_unlink,
-ENOENT might be ingored for local directory unlink.
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5371
Reviewed-on: http://review.whamcloud.com/11170Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/lmv/lmv_obd.c

@@ -2641,7 +2641,7 @@ static int lmv_unlink(struct obd_export *exp, struct md_op_data *op_data,
 
 	/* Not cross-ref case, just get out of here. */
 	if (likely(!(body->mbo_valid & OBD_MD_MDS)))
-		return 0;
+		return rc;
 
 	CDEBUG(D_INODE, "%s: try unlink to another MDT for "DFID"\n",
 	       exp->exp_obd->obd_name, PFID(&body->mbo_fid1));