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[SCSI] ipr: slave_alloc optimization

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Optimize ipr's slave_alloc to return -ENXIO for devices that
do not exist.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
brking@us.ibm.com 2005-11-01 17:01:07 -06:00 committed by James Bottomley
parent 0726ce2610
commit 692aebfc69
1 changed files with 4 additions and 2 deletions
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6
drivers/scsi/ipr.c
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@ -2815,13 +2815,14 @@ static int ipr_slave_configure(struct scsi_device *sdev)
* handling new commands.
*
* Return value:
* 0 on success
* 0 on success / -ENXIO if device does not exist
**/
static int ipr_slave_alloc(struct scsi_device *sdev)
{
struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
struct ipr_resource_entry *res;
unsigned long lock_flags;
int rc = -ENXIO;
sdev->hostdata = NULL;
@ -2836,13 +2837,14 @@ static int ipr_slave_alloc(struct scsi_device *sdev)
res->in_erp = 0;
sdev->hostdata = res;
res->needs_sync_complete = 1;
rc = 0;
break;
}
}
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
return 0;
return rc;
}
/**