s390/char/vmur.c

256 	int rc;
262 	rc = mutex_lock_interruptible(&urd->io_mutex);
263 	if (rc)
264 		return rc;
269 	rc = ccw_device_start(cdev, cpa, 1, 0, 0);
272 	TRACE("do_ur_io: ccw_device_start returned %d\n", rc);
273 	if (rc)
278 	rc = 0;
282 	return rc;
343 	int rc;
348 	rc = sprintf(buf, "%zu\n", urd->reclen);
350 	return rc;
424 	int rc;
430 	rc = do_ur_io(urd, cpa);
431 	if (rc)
435 		rc = urd->io_request_rc;
439 	rc = count;
443 	return rc;
519 	int rc;
526 	rc = diag_position_to_record(urd->dev_id.devno, *offs / PAGE_SIZE + 1);
527 	if (rc == -ENODATA)
529 	if (rc)
530 		return rc;
540 		rc = diag_read_file(urd->dev_id.devno, buf);
541 		if (rc == -ENODATA) {
544 		if (rc)
550 			rc = -EFAULT;
558 	rc = copied;
561 	return rc;
568 	int rc;
576 	rc = mutex_lock_interruptible(&urd->io_mutex);
577 	if (rc)
578 		return rc;
579 	rc = diag14_read(file, ubuf, count, offs);
581 	return rc;
607 	int rc;
614 	rc = diag_read_next_file_info(fcb, 0);
615 	if (rc)
620 		rc = -EPERM;
627 		rc = -ENOMEM;
630 	rc = diag_read_file(urd->dev_id.devno, buf);
631 	if ((rc != 0) && (rc != -ENODATA)) /* EOF does not hurt */
635 	rc = diag_read_next_file_info(fcb, 0);
636 	if (rc)
639 		rc = -EMFILE;
642 	rc = 0;
648 	return rc;
666 	int rc;
671 	rc = diag_read_next_file_info(fcb, 0);
672 	if (rc)
675 		rc = 0;
677 		rc = fcb->rec_len;
681 	return rc;
702 	int rc;
716 		rc = -ENXIO;
724 			rc = -EBUSY;
728 			rc = -ERESTARTSYS;
741 		rc = -EACCES;
745 	rc = verify_device(urd);
746 	if (rc)
751 		rc = -ENOMEM;
756 	rc = get_file_reclen(urd);
757 	if (rc < 0)
759 	urf->file_reclen = rc;
772 	return rc;
824 	int rc;
831 		rc = -ENOMEM;
835 	rc = ur_create_attributes(&cdev->dev);
836 	if (rc) {
837 		rc = -ENOMEM;
844 		rc = urd->class;
848 		rc = -EOPNOTSUPP;
865 	return rc;
871 	int minor, major, rc;
880 		rc = -ENODEV;
886 		rc = -EBUSY;
895 		rc = -ENOMEM;
902 	rc = cdev_add(urd->char_device, MKDEV(major, minor), 1);
903 	if (rc)
913 		rc = -EOPNOTSUPP;
920 		rc = PTR_ERR(urd->device);
921 		TRACE("ur_set_online: device_create rc=%d\n", rc);
935 	return rc;
941 	int rc;
950 		rc = -EBUSY;
956 		rc = -EBUSY;
966 	rc = 0;
970 	return rc;
975 	int rc;
978 	rc = ur_set_offline_force(cdev, 0);
980 	return rc;
1009 	int rc;
1021 	rc = debug_register_view(vmur_dbf, &debug_sprintf_view);
1022 	if (rc)
1027 	rc = class_register(&vmur_class);
1028 	if (rc)
1031 	rc = ccw_driver_register(&ur_driver);
1032 	if (rc)
1035 	rc = alloc_chrdev_region(&dev, 0, NUM_MINORS, "vmur");
1036 	if (rc) {
1038 		       "error code %d\n", rc);
1052 	return rc;