[SCSI] iscsi: data under/over flow fix

We need to check the ISCSI_FLAG_DATA_* flags.

Signed-off-by: Alex Aizman <itn780@yahoo.com>
Signed-off-by: Dmitry Yusupov <dmitry_yus@yahoo.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/iscsi_tcp.c

@@ -357,7 +357,7 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 		struct scsi_cmnd *sc = ctask->sc;
 
 		conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1;
-		if (rhdr->flags & ISCSI_FLAG_CMD_UNDERFLOW) {
+		if (rhdr->flags & ISCSI_FLAG_DATA_UNDERFLOW) {
 			int res_count = be32_to_cpu(rhdr->residual_count);
 
 			if (res_count > 0 &&
@@ -367,9 +367,7 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 			} else
 				sc->result = (DID_BAD_TARGET << 16) |
 					rhdr->cmd_status;
-		} else if (rhdr->flags & ISCSI_FLAG_CMD_BIDI_UNDERFLOW)
-			sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;
-		else if (rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW) {
+		} else if (rhdr->flags & ISCSI_FLAG_DATA_OVERFLOW) {
 			sc->resid = be32_to_cpu(rhdr->residual_count);
 			sc->result = (DID_OK << 16) | rhdr->cmd_status;
 		} else