[SCSI] zfcp: fix device registration issues

[linux-2.6-omap-h63xx.git] / drivers / s390 / scsi / zfcp_scsi.c

diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index a2de3c9afe4914869a089f50ec4a58084840c513..9e6d07d7b3c80cc5d77866e80c4eb38b273e167a 100644 (file)
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -183,7 +183,8 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp)
 
        read_lock_irqsave(&zfcp_data.config_lock, flags);
        unit = zfcp_unit_lookup(adapter, sdp->channel, sdp->id, sdp->lun);
-       if (unit) {
+       if (unit && atomic_test_mask(ZFCP_STATUS_UNIT_REGISTERED,
+                                    &unit->status)) {
                sdp->hostdata = unit;
                unit->device = sdp;
                zfcp_unit_get(unit);
@@ -208,6 +209,7 @@ zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
        struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
 
        if (unit) {
+               atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
                sdpnt->hostdata = NULL;
                unit->device = NULL;
                zfcp_unit_put(unit);
@@ -291,7 +293,7 @@ zfcp_scsi_command_async(struct zfcp_adapter *adapter, struct zfcp_unit *unit,
                               "on port 0x%016Lx in recovery\n",
                               zfcp_get_busid_by_unit(unit),
                               unit->fcp_lun, unit->port->wwpn);
-               retval = SCSI_MLQUEUE_DEVICE_BUSY;
+               zfcp_scsi_command_fail(scpnt, DID_NO_CONNECT);
                goto out;
        }