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dm: add missing del_gendisk to alloc_dev error path

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Add missing del_gendisk() to error path when creation of workqueue fails.
Otherwice there is a resource leak and following warning is shown:

WARNING: at fs/sysfs/dir.c:487 sysfs_add_one+0xc5/0x160()
sysfs: cannot create duplicate filename '/devices/virtual/block/dm-0'

Cc: [email protected]
Signed-off-by: Zdenek Kabelac <[email protected]>
Reviewed-by: Jonathan Brassow <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
This commit is contained in:
Zdenek Kabelac 2009-10-16 23:18:15 +01:00 • committed by Alasdair G Kergon
commit 03022c54b9
1 changed files with 1 additions and 0 deletions
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1
drivers/md/dm.c
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@ -1822,6 +1822,7 @@ static struct mapped_device *alloc_dev(int minor)
bad_bdev:
destroy_workqueue(md->wq);
bad_thread:
del_gendisk(md->disk);
put_disk(md->disk);
bad_disk:
blk_cleanup_queue(md->queue);