if (!logical && !STp->scsi2_logical)
                        scmd[1] = 1;
        }
-       SRpnt = st_do_scsi(NULL, STp, scmd, 20, DMA_FROM_DEVICE,
-                          STp->device->request_queue->rq_timeout,
-                          MAX_READY_RETRIES, 1);
+
+       SRpnt = st_allocate_request(STp);
        if (!SRpnt)
-               return (STp->buffer)->syscall_result;
+               return STp->buffer->syscall_result;
+
+       result = st_scsi_kern_execute(SRpnt, scmd, DMA_FROM_DEVICE,
+                                     STp->buffer->b_data, 20,
+                                     STp->device->request_queue->rq_timeout,
+                                     MAX_READY_RETRIES);
+       if (result)
+               goto out;
 
        if ((STp->buffer)->syscall_result != 0 ||
            (STp->device->scsi_level >= SCSI_2 &&
                 DEBC(printk(ST_DEB_MSG "%s: Got tape pos. blk %d part %d.\n", name,
                             *block, *partition));
        }
+out:
        st_release_request(SRpnt);
        SRpnt = NULL;