810 				if (STps->drv_file >= 0)  in flush_buffer()
811 					STps->drv_file++;  in flush_buffer()
818 		if (STps->drv_file >= 0)  in flush_buffer()
819 			STps->drv_file++;  in flush_buffer()
892 		STps->drv_file = -1;  in reset_state()
1028 			STps->drv_file = 0;  in check_tape()
1044 			STp->ps[0].drv_file = STp->ps[0].drv_block = (-1);  in check_tape()
1348 			if (STps->drv_file >= 0)  in st_flush()
1349 				STps->drv_file++;  in st_flush()
1373 					if (STps->drv_file >= 0)  in st_flush()
1374 						STps->drv_file++;  in st_flush()
1383 			if (STps->drv_file >= 0)  in st_flush()
1384 				STps->drv_file++;  in st_flush()
1611 		   STps->drv_file == 0 && STps->drv_block == 0) {  in st_write()
2156 			if (STps->drv_file >= 0)  in st_read()
2157 				STps->drv_file++;  in st_read()
2161 			if (STps->drv_file >= 0)  in st_read()
2162 				STps->drv_file++;  in st_read()
2609 		STps->drv_file = STps->drv_block = (-1);  in do_load_unload()
2661 	fileno = STps->drv_file;  in st_int_ioctl()
2805 			fileno = STps->drv_file;  in st_int_ioctl()
2912 		STps->drv_file = fileno;  in st_int_ioctl()
2972 			STps->drv_file = fileno;  in st_int_ioctl()
2975 				STps->drv_file = fileno - undone;  in st_int_ioctl()
2977 				STps->drv_file = fileno;  in st_int_ioctl()
2983 			if (STps->drv_file >= 0)  in st_int_ioctl()
2984 				STps->drv_file = fileno + undone;  in st_int_ioctl()
2989 				if (STps->drv_file >= 0)  in st_int_ioctl()
2990 					STps->drv_file++;  in st_int_ioctl()
3002 				STps->drv_file--;  in st_int_ioctl()
3012 			STps->drv_file = (-1);  in st_int_ioctl()
3091 				STp->ps[0].drv_block = STp->ps[0].drv_file = 0;  in get_location()
3174 	STps->drv_block = STps->drv_file = (-1);  in set_location()
3194 			STps->drv_block = STps->drv_file = 0;  in set_location()
3419 					if (STps->drv_file >= 0)  in st_ioctl()
3420 						STps->drv_file += 1;  in st_ioctl()
3423 					if (STps->drv_file >= 0)  in st_ioctl()
3424 						STps->drv_file += 1;  in st_ioctl()
3531 			STps->drv_block = STps->drv_file = 0;  in st_ioctl()
3599 		mt_status.mt_fileno = STps->drv_file;  in st_ioctl()
4204 		STps->drv_file = (-1);  in st_probe()