I ran into this one sending bus resets across the hardware.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
                 * are identical to those last reported.
                 */
                starget = ahd->platform_data->starget[target];
-               targ = scsi_transport_target_data(starget);
-               if (targ == NULL)
+               if (starget == NULL)
                        break;
+               targ = scsi_transport_target_data(starget);
 
                target_ppr_options =
                        (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0)
 
                if (channel == 'B')
                        target_offset += 8;
                starget = ahc->platform_data->starget[target_offset];
-               targ = scsi_transport_target_data(starget);
-               if (targ == NULL)
+               if (starget == NULL)
                        break;
+               targ = scsi_transport_target_data(starget);
 
                target_ppr_options =
                        (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0)