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authorbrking@us.ibm.com <brking@us.ibm.com>2005-11-01 17:01:07 -0600
committerJames Bottomley <jejb@mulgrave.(none)>2005-11-06 13:02:46 -0600
commit692aebfc6982a64e70ed11467545f2b9c95e6592 (patch)
tree6cb5413e8b0c42cb2b2235d60d9ca745233a0332 /drivers/scsi/ipr.c
parent0726ce26104671e3072d90b9c697c253974e823d (diff)
downloadop-kernel-dev-692aebfc6982a64e70ed11467545f2b9c95e6592.zip
op-kernel-dev-692aebfc6982a64e70ed11467545f2b9c95e6592.tar.gz
[SCSI] ipr: slave_alloc optimization
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>
Diffstat (limited to 'drivers/scsi/ipr.c')
-rw-r--r--drivers/scsi/ipr.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 63d01e6..8817ea0 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -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;
}
/**
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