Commit 03022c54 authored Oct 16, 2009 by Zdenek Kabelac Committed by Alasdair G Kergon Oct 16, 2009

dm: add missing del_gendisk to alloc_dev error path



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: stable@kernel.org
Signed-off-by: Zdenek Kabelac <zkabelac@redhat.com>
Reviewed-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

parent bca915aa

drivers/md/dm.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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);