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authorMark Lord <liml@rtr.ca>2007-02-02 12:36:25 -0500
committerJeff Garzik <jeff@garzik.org>2007-04-28 14:15:55 -0400
commitf0ef88ed413232daebfe675c7b1bbf100d604d4b (patch)
treefc235d7aede0d6c4d2e500ef5d0446122eaa611a /drivers/ata/libata-scsi.c
parentcd0d3bbcdd650651b7ccfaf55d107e3fc237d95a (diff)
RESEND: libata: check cdb len per dev instead of per host
Resending, with s/printk/DPRINTK/ as pointed out by Alan. Fix libata to perform CDB len validation per device rather than per host. This way, validation still works when we have a mix of 12-byte and 16-byte devices on a common host interface. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/libata-scsi.c')
-rw-r--r--drivers/ata/libata-scsi.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index e9364434182c..7d41afe8ccbc 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2792,8 +2792,9 @@ static inline int __ata_scsi_queuecmd(struct scsi_cmnd *scmd,
{
int rc = 0;
- if (unlikely(!scmd->cmd_len)) {
- ata_dev_printk(dev, KERN_WARNING, "WARNING: zero len CDB\n");
+ if (unlikely(!scmd->cmd_len || scmd->cmd_len > dev->cdb_len)) {
+ DPRINTK("bad CDB len=%u, max=%u\n",
+ scmd->cmd_len, dev->cdb_len);
scmd->result = DID_ERROR << 16;
done(scmd);
return 0;