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[SCSI] scsi_scan: add missing interim SDEV_DEL state if slave_alloc fails 

We were running i/o and performing a bunch of hba resets in a loop.
This forces a lot of target removes and then rescans. Since the
resets are occuring during scan it's causing the scan i/o to timeout,
invoking error recovery, etc.  We end up getting some nasty crashing
in scsi_scan.c due to references to old sdevs that are failing
but had some lingering references that kept them around.

Fix by setting device state to SDEV_DEL if the LLD's slave_alloc
fails.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Smart 2009-01-27 11:41:36 -05:00 committed by James Bottomley
parent e637d55319
commit c2f9e49f9b
1 changed files with 1 additions and 0 deletions
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1
drivers/scsi/scsi_scan.c
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@ -317,6 +317,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget,
return sdev;
out_device_destroy:
scsi_device_set_state(sdev, SDEV_DEL);
transport_destroy_device(&sdev->sdev_gendev);
put_device(&sdev->sdev_gendev);
out: