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[SCSI] iscsi: iscsi response fix 

from Wang Zhenyu:

Must check SCSI CMD and R2T response according to the spec

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Alex Aizman <itn780@yahoo.com>
Signed-off-by: Dmitry Yusupov <dmitry_yus@yahoo.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Mike Christie 2005-11-29 23:12:54 -06:00 committed by James Bottomley
parent e6273993db
commit 733bb6a70c
1 changed files with 2 additions and 5 deletions
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7
drivers/scsi/iscsi_tcp.c
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@ -642,9 +642,7 @@ iscsi_hdr_recv(struct iscsi_conn *conn)
switch(conn->in.opcode) {
case ISCSI_OP_SCSI_CMD_RSP:
BUG_ON((void*)ctask != ctask->sc->SCp.ptr);
if (ctask->hdr.flags & ISCSI_FLAG_CMD_WRITE)
rc = iscsi_cmd_rsp(conn, ctask);
else if (!conn->in.datalen)
if (!conn->in.datalen)
rc = iscsi_cmd_rsp(conn, ctask);
else
/*
@ -666,8 +664,7 @@ iscsi_hdr_recv(struct iscsi_conn *conn)
break;
case ISCSI_OP_R2T:
BUG_ON((void*)ctask != ctask->sc->SCp.ptr);
if (ctask->hdr.flags & ISCSI_FLAG_CMD_WRITE &&
ctask->sc->sc_data_direction == DMA_TO_DEVICE)
if (ctask->sc->sc_data_direction == DMA_TO_DEVICE)
rc = iscsi_r2t_rsp(conn, ctask);
else
rc = ISCSI_ERR_PROTO;