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[SCSI] zfcp: Dont clear reference from SCSI device to unit

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It is possible that a remote port has a problem, the SCSI device gets
deleted after the rport timeout and then the timeout for pending SCSI
commands trigger an abort. For this case, don't delete the reference
from the SCSI device to the zfcp unit, so that we can still have the
reference to issue an abort request.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Christof Schmitt 2008-11-04 16:35:05 +01:00 committed by James Bottomley
parent 3869a17288
commit 26816f1c2b
1 changed files with 4 additions and 8 deletions
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12
drivers/s390/scsi/zfcp_scsi.c
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@ -24,14 +24,10 @@ char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu)
static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
{
struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
WARN_ON(!unit);
if (unit) {
atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
sdpnt->hostdata = NULL;
unit->device = NULL;
zfcp_erp_unit_failed(unit, 12, NULL);
zfcp_unit_put(unit);
}
atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
unit->device = NULL;
zfcp_erp_unit_failed(unit, 12, NULL);
zfcp_unit_put(unit);
}
static int zfcp_scsi_slave_configure(struct scsi_device *sdp)