26 		return -EACCES;  in blkpg_ioctl()
28 		return -EFAULT;  in blkpg_ioctl()
30 		return -EFAULT;  in blkpg_ioctl()
33 		return -EINVAL;  in blkpg_ioctl()
36 		return -EINVAL;  in blkpg_ioctl()
47 					return -EINVAL;  in blkpg_ioctl()
51 				return -EINVAL;  in blkpg_ioctl()
63 					return -EBUSY;  in blkpg_ioctl()
72 			return PTR_ERR_OR_ZERO(part);  in blkpg_ioctl()
76 				return -ENXIO;  in blkpg_ioctl()
81 				return -ENOMEM;  in blkpg_ioctl()
87 				return -EBUSY;  in blkpg_ioctl()
99 			return 0;  in blkpg_ioctl()
110 					return -EINVAL;  in blkpg_ioctl()
114 				return -ENXIO;  in blkpg_ioctl()
118 				return -ENOMEM;  in blkpg_ioctl()
127 				return -EINVAL;  in blkpg_ioctl()
142 					return -EBUSY;  in blkpg_ioctl()
152 			return 0;  in blkpg_ioctl()
154 			return -EINVAL;  in blkpg_ioctl()
168 		return -EINVAL;  in __blkdev_reread_part()
170 		return -EACCES;  in __blkdev_reread_part()
174 	return rescan_partitions(disk, bdev);  in __blkdev_reread_part()
197 	return res;  in blkdev_reread_part()
211 		return -EBADF;  in blk_ioctl_discard()
214 		return -EOPNOTSUPP;  in blk_ioctl_discard()
217 		return -EFAULT;  in blk_ioctl_discard()
223 		return -EINVAL;  in blk_ioctl_discard()
225 		return -EINVAL;  in blk_ioctl_discard()
228 		return -EINVAL;  in blk_ioctl_discard()
230 	return blkdev_issue_discard(bdev, start >> 9, len >> 9,  in blk_ioctl_discard()
242 		return -EBADF;  in blk_ioctl_zeroout()
245 		return -EFAULT;  in blk_ioctl_zeroout()
252 		return -EINVAL;  in blk_ioctl_zeroout()
254 		return -EINVAL;  in blk_ioctl_zeroout()
256 		return -EINVAL;  in blk_ioctl_zeroout()
258 		return -EINVAL;  in blk_ioctl_zeroout()
264 	return blkdev_issue_zeroout(bdev, start >> 9, len >> 9, GFP_KERNEL,  in blk_ioctl_zeroout()
270 	return put_user(val, (unsigned short __user *)arg);  in put_ushort()
275 	return put_user(val, (int __user *)arg);  in put_int()
280 	return put_user(val, (unsigned int __user *)arg);  in put_uint()
285 	return put_user(val, (long __user *)arg);  in put_long()
290 	return put_user(val, (unsigned long __user *)arg);  in put_ulong()
295 	return put_user(val, (u64 __user *)arg);  in put_u64()
304 		return disk->fops->ioctl(bdev, mode, cmd, arg);  in __blkdev_driver_ioctl()
306 	return -ENOTTY;  in __blkdev_driver_ioctl()
322 		return -EPERM;  in blkdev_pr_register()
324 		return -EOPNOTSUPP;  in blkdev_pr_register()
326 		return -EFAULT;  in blkdev_pr_register()
329 		return -EOPNOTSUPP;  in blkdev_pr_register()
330 	return ops->pr_register(bdev, reg.old_key, reg.new_key, reg.flags);  in blkdev_pr_register()
340 		return -EPERM;  in blkdev_pr_reserve()
342 		return -EOPNOTSUPP;  in blkdev_pr_reserve()
344 		return -EFAULT;  in blkdev_pr_reserve()
347 		return -EOPNOTSUPP;  in blkdev_pr_reserve()
348 	return ops->pr_reserve(bdev, rsv.key, rsv.type, rsv.flags);  in blkdev_pr_reserve()
358 		return -EPERM;  in blkdev_pr_release()
360 		return -EOPNOTSUPP;  in blkdev_pr_release()
362 		return -EFAULT;  in blkdev_pr_release()
365 		return -EOPNOTSUPP;  in blkdev_pr_release()
366 	return ops->pr_release(bdev, rsv.key, rsv.type);  in blkdev_pr_release()
376 		return -EPERM;  in blkdev_pr_preempt()
378 		return -EOPNOTSUPP;  in blkdev_pr_preempt()
380 		return -EFAULT;  in blkdev_pr_preempt()
383 		return -EOPNOTSUPP;  in blkdev_pr_preempt()
384 	return ops->pr_preempt(bdev, p.old_key, p.new_key, p.type, abort);  in blkdev_pr_preempt()
394 		return -EPERM;  in blkdev_pr_clear()
396 		return -EOPNOTSUPP;  in blkdev_pr_clear()
398 		return -EFAULT;  in blkdev_pr_clear()
401 		return -EOPNOTSUPP;  in blkdev_pr_clear()
402 	return ops->pr_clear(bdev, c.key);  in blkdev_pr_clear()
411  * Confused drivers sometimes return EINVAL, which is wrong. It
420 	return	ret == -EINVAL ||  in is_unrecognized_ioctl()
431 		return -EACCES;  in blkdev_flushbuf()
435 		return ret;  in blkdev_flushbuf()
439 	return 0;  in blkdev_flushbuf()
448 		return -EACCES;  in blkdev_roset()
452 		return ret;  in blkdev_roset()
454 		return -EFAULT;  in blkdev_roset()
456 	return 0;  in blkdev_roset()
467 		return -EINVAL;  in blkdev_getgeo()
469 		return -ENOTTY;  in blkdev_getgeo()
479 		return ret;  in blkdev_getgeo()
481 		return -EFAULT;  in blkdev_getgeo()
482 	return 0;  in blkdev_getgeo()
492 		return -EACCES;  in blkdev_bszset()
494 		return -EINVAL;  in blkdev_bszset()
496 		return -EFAULT;  in blkdev_bszset()
501 			return -EBUSY;  in blkdev_bszset()
507 	return ret;  in blkdev_bszset()
522 		return blkdev_flushbuf(bdev, mode, cmd, arg);  in blkdev_ioctl()
524 		return blkdev_roset(bdev, mode, cmd, arg);  in blkdev_ioctl()
526 		return blk_ioctl_discard(bdev, mode, arg, 0);  in blkdev_ioctl()
528 		return blk_ioctl_discard(bdev, mode, arg,  in blkdev_ioctl()
531 		return blk_ioctl_zeroout(bdev, mode, arg);  in blkdev_ioctl()
533 		return blkdev_report_zones_ioctl(bdev, mode, cmd, arg);  in blkdev_ioctl()
535 		return blkdev_reset_zones_ioctl(bdev, mode, cmd, arg);  in blkdev_ioctl()
537 		return put_uint(arg, bdev_zone_sectors(bdev));  in blkdev_ioctl()
539 		return put_uint(arg, blkdev_nr_zones(bdev));  in blkdev_ioctl()
541 		return blkdev_getgeo(bdev, argp);  in blkdev_ioctl()
545 			return -EINVAL;  in blkdev_ioctl()
546 		return put_long(arg, (bdev->bd_bdi->ra_pages*PAGE_SIZE) / 512);  in blkdev_ioctl()
548 		return put_int(arg, bdev_read_only(bdev) != 0);  in blkdev_ioctl()
550 		return put_int(arg, block_size(bdev));  in blkdev_ioctl()
552 		return put_int(arg, bdev_logical_block_size(bdev));  in blkdev_ioctl()
554 		return put_uint(arg, bdev_physical_block_size(bdev));  in blkdev_ioctl()
556 		return put_uint(arg, bdev_io_min(bdev));  in blkdev_ioctl()
558 		return put_uint(arg, bdev_io_opt(bdev));  in blkdev_ioctl()
560 		return put_int(arg, bdev_alignment_offset(bdev));  in blkdev_ioctl()
562 		return put_uint(arg, 0);  in blkdev_ioctl()
566 		return put_ushort(arg, max_sectors);  in blkdev_ioctl()
568 		return put_ushort(arg, !blk_queue_nonrot(bdev_get_queue(bdev)));  in blkdev_ioctl()
572 			return -EACCES;  in blkdev_ioctl()
574 		return 0;  in blkdev_ioctl()
576 		return blkdev_bszset(bdev, mode, argp);  in blkdev_ioctl()
578 		return blkpg_ioctl(bdev, argp);  in blkdev_ioctl()
580 		return blkdev_reread_part(bdev);  in blkdev_ioctl()
584 			return -EFBIG;  in blkdev_ioctl()
585 		return put_ulong(arg, size >> 9);  in blkdev_ioctl()
587 		return put_u64(arg, i_size_read(bdev->bd_inode));  in blkdev_ioctl()
592 		return blk_trace_ioctl(bdev, cmd, argp);  in blkdev_ioctl()
594 		return blkdev_pr_register(bdev, argp);  in blkdev_ioctl()
596 		return blkdev_pr_reserve(bdev, argp);  in blkdev_ioctl()
598 		return blkdev_pr_release(bdev, argp);  in blkdev_ioctl()
600 		return blkdev_pr_preempt(bdev, argp, false);  in blkdev_ioctl()
602 		return blkdev_pr_preempt(bdev, argp, true);  in blkdev_ioctl()
604 		return blkdev_pr_clear(bdev, argp);  in blkdev_ioctl()
606 		return __blkdev_driver_ioctl(bdev, mode, cmd, arg);  in blkdev_ioctl()