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[SCSI] sd: quiet spurious error messages in READ_CAPACITY(16)

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sd always tries to submit a READ_CAPACITY(16) CDB,
regardless whether the host actually supports it.
queuecommand() will then return DID_ABORT, which is
not qualified enough to detect the true cause here.
So better check in sd_try_rc16 first if the cdblen
is supported.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Hannes Reinecke 2010-03-29 09:29:24 +02:00 committed by James Bottomley
parent 457549da73
commit f87146bba5
1 changed files with 2 additions and 0 deletions
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2
drivers/scsi/sd.c
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@ -1573,6 +1573,8 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp,
static int sd_try_rc16_first(struct scsi_device *sdp)
{
if (sdp->host->max_cmd_len < 16)
return 0;
if (sdp->scsi_level > SCSI_SPC_2)
return 1;
if (scsi_device_protection(sdp))