From: Mike Christie Date: Thu, 13 Dec 2007 18:43:37 +0000 (-0600) Subject: [SCSI] iscsi_tcp: drop session when itt does not match any command X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7a53dc52a5f218bf306b875bf0610e851d5a8268;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git [SCSI] iscsi_tcp: drop session when itt does not match any command A target should never send us a itt that does not match a running task. If it does we do not really know what is coming down after the header, unless we evaluate the hdr and do some guessing sometimes. However, even if we know what is coming we probably do not have buffers for it or we cannot respond (if it is a r2t for example), so just drop the session. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index ecba606e6521..65df908019fd 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -755,11 +755,7 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr) opcode = hdr->opcode & ISCSI_OPCODE_MASK; /* verify itt (itt encoding: age+cid+itt) */ rc = iscsi_verify_itt(conn, hdr, &itt); - if (rc == ISCSI_ERR_NO_SCSI_CMD) { - /* XXX: what does this do? */ - tcp_conn->in.datalen = 0; /* force drop */ - return 0; - } else if (rc) + if (rc) return rc; debug_tcp("opcode 0x%x ahslen %d datalen %d\n",