nvme_fc: correct LS validation

LS validations shouldn't have been independent checks.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>

drivers/nvme/host/fc.c

@@ -848,11 +848,12 @@ nvme_fc_connect_admin_queue(struct nvme_fc_ctrl *ctrl,
 	/* validate the ACC response */
 	if (assoc_acc->hdr.w0.ls_cmd != FCNVME_LS_ACC)
 		fcret = VERR_LSACC;
-	if (assoc_acc->hdr.desc_list_len !=
+	else if (assoc_acc->hdr.desc_list_len !=
 			fcnvme_lsdesc_len(
 				sizeof(struct fcnvme_ls_cr_assoc_acc)))
 		fcret = VERR_CR_ASSOC_ACC_LEN;
-	if (assoc_acc->hdr.rqst.desc_tag != cpu_to_be32(FCNVME_LSDESC_RQST))
+	else if (assoc_acc->hdr.rqst.desc_tag !=
+			cpu_to_be32(FCNVME_LSDESC_RQST))
 		fcret = VERR_LSDESC_RQST;
 	else if (assoc_acc->hdr.rqst.desc_len !=
 			fcnvme_lsdesc_len(sizeof(struct fcnvme_lsdesc_rqst)))
@@ -955,10 +956,10 @@ nvme_fc_connect_queue(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
 	/* validate the ACC response */
 	if (conn_acc->hdr.w0.ls_cmd != FCNVME_LS_ACC)
 		fcret = VERR_LSACC;
-	if (conn_acc->hdr.desc_list_len !=
+	else if (conn_acc->hdr.desc_list_len !=
 			fcnvme_lsdesc_len(sizeof(struct fcnvme_ls_cr_conn_acc)))
 		fcret = VERR_CR_CONN_ACC_LEN;
-	if (conn_acc->hdr.rqst.desc_tag != cpu_to_be32(FCNVME_LSDESC_RQST))
+	else if (conn_acc->hdr.rqst.desc_tag != cpu_to_be32(FCNVME_LSDESC_RQST))
 		fcret = VERR_LSDESC_RQST;
 	else if (conn_acc->hdr.rqst.desc_len !=
 			fcnvme_lsdesc_len(sizeof(struct fcnvme_lsdesc_rqst)))