Commit 88ce2a53 authored Sep 08, 2020 by Christoph Hellwig Committed by Jens Axboe Sep 08, 2020

block: restore a specific error code in bdev_del_partition



mdadm relies on the fact that deleting an invalid partition returns
-ENXIO or -ENOTTY to detect if a block device is a partition or a
whole device.

Fixes: 08fc1ab6 ("block: fix locking in bdev_del_partition")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 7e249690

block/partitions/core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -537,7 +537,7 @@ int bdev_del_partition(struct block_device *bdev, int partno)

		bdevp = bdget_disk(bdev->bd_disk, partno);
		if (!bdevp)
		return -ENOMEM;
		return -ENXIO;

		mutex_lock(&bdevp->bd_mutex);
		mutex_lock_nested(&bdev->bd_mutex, 1);

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