1b695be scsi: Force error for SCSI pools on virStorageBackendSCSIFindLUs failure

Authored and Committed by John Ferlan 8 years ago
    scsi: Force error for SCSI pools on virStorageBackendSCSIFindLUs failure
    
    Related to :
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1171933
    
    Rather than ignore the return status from virStorageBackendSCSIFindLUs,
    cause a failure to start the pool if a -1 is returned. Issue was noted
    during testing of the bz for iscsi that 'scsi' and 'fc' pools don't fail.