diff --git a/iscsi-scst/kernel/isert-scst/iser_rdma.c b/iscsi-scst/kernel/isert-scst/iser_rdma.c
index 6caf5c991..e2d8180b6 100644
--- a/iscsi-scst/kernel/isert-scst/iser_rdma.c
+++ b/iscsi-scst/kernel/isert-scst/iser_rdma.c
@@ -427,14 +427,16 @@ static void isert_send_completion_handler(struct isert_wr *wr)
 	struct isert_cmnd *isert_pdu = wr->pdu;
 	struct iscsi_cmnd *iscsi_pdu = &isert_pdu->iscsi;
 	struct iscsi_cmnd *iscsi_req_pdu = iscsi_pdu->parent_req;
-	struct isert_cmnd *isert_req_pdu = container_of(iscsi_req_pdu,
-						    struct isert_cmnd, iscsi);
 
 	TRACE_ENTRY();
 
-	if (iscsi_req_pdu && iscsi_req_pdu->bufflen &&
-	    isert_req_pdu->is_rstag_valid)
-		isert_data_in_sent(iscsi_req_pdu);
+	if (iscsi_req_pdu && iscsi_req_pdu->bufflen) {
+		struct isert_cmnd *isert_req_pdu =
+			container_of(iscsi_req_pdu, struct isert_cmnd, iscsi);
+
+		if (isert_req_pdu->is_rstag_valid)
+			isert_data_in_sent(iscsi_req_pdu);
+	}
 
 	isert_pdu_sent(iscsi_pdu);