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authorChristof Schmitt <christof.schmitt@de.ibm.com>2008-11-04 15:35:05 (GMT)
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-11-05 17:44:15 (GMT)
commit26816f1c2bf59a269917815adb1d972b9fb65e3a (patch)
tree1476d88a9b6231e4704b15584b88f10dee4d705d /drivers/s390/scsi/zfcp_scsi.c
parent3869a1728808fc9e075d0091bb03826fa6ed58b0 (diff)
downloadlinux-fsl-qoriq-26816f1c2bf59a269917815adb1d972b9fb65e3a.tar.xz
[SCSI] zfcp: Dont clear reference from SCSI device to unit
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>
Diffstat (limited to 'drivers/s390/scsi/zfcp_scsi.c')
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index ca8f85f..e46fd3e 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -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)