From 88ce2a530cc9865a894454b2e40eba5957a60e1a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 8 Sep 2020 16:15:06 +0200 Subject: 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: 08fc1ab6d748 ("block: fix locking in bdev_del_partition") Reported-by: kernel test robot Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- block/partitions/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/partitions/core.c b/block/partitions/core.c index 5b4869c08fb38..722406b841dfc 100644 --- a/block/partitions/core.c +++ b/block/partitions/core.c @@ -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); -- cgit 1.2.3-1.el7