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[SCSI] libfcoe: Avoid hang when receiving non-critical descriptors

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Avoid infinite loop while processing FIP ELS or discovery
advertisement with non-critical descriptors.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Acked-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Bhanu Prakash Gollapudi 2010-06-11 16:43:38 -07:00 committed by James Bottomley
parent 281ae642a6
commit 1508f3ecd9
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/fcoe/libfcoe.c
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@ -703,7 +703,7 @@ static int fcoe_ctlr_parse_adv(struct fcoe_ctlr *fip,
/* standard says ignore unknown descriptors >= 128 */
if (desc->fip_dtype < FIP_DT_VENDOR_BASE)
return -EINVAL;
continue;
break;
}
desc = (struct fip_desc *)((char *)desc + dlen);
rlen -= dlen;
@ -885,7 +885,7 @@ static void fcoe_ctlr_recv_els(struct fcoe_ctlr *fip, struct sk_buff *skb)
/* standard says ignore unknown descriptors >= 128 */
if (desc->fip_dtype < FIP_DT_VENDOR_BASE)
goto drop;
continue;
break;
}
desc = (struct fip_desc *)((char *)desc + dlen);
rlen -= dlen;