131 	struct tape_request *request;  in tapechar_read()  local
165 	request = device->discipline->read_block(device, block_size);  in tapechar_read()
166 	if (IS_ERR(request))  in tapechar_read()
167 		return PTR_ERR(request);  in tapechar_read()
169 	rc = tape_do_io(device, request);  in tapechar_read()
171 		rc = block_size - request->rescnt;  in tapechar_read()
178 	tape_free_request(request);  in tapechar_read()
189 	struct tape_request *request;  in tapechar_write()  local
218 	request = device->discipline->write_block(device, block_size);  in tapechar_write()
219 	if (IS_ERR(request))  in tapechar_write()
220 		return PTR_ERR(request);  in tapechar_write()
230 		rc = tape_do_io(device, request);  in tapechar_write()
234 			  block_size - request->rescnt);  in tapechar_write()
235 		written += block_size - request->rescnt;  in tapechar_write()
236 		if (request->rescnt != 0)  in tapechar_write()
240 	tape_free_request(request);  in tapechar_write()