Btrfs: set qgroup_ulist to be null after calling ulist_free()

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We call ulist_free(qgroup_ulist) in btrfs_free_qgroup_config(),
and btrfs_free_qgroup_config() may be called in two cases:

(1)umount filesystem
(2)disabling quota

However, if we firstly disable quota and then umount filesystem,
a double free happens. Fix it.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

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Wang Shilong 2013-07-13 21:02:54 +08:00 • committed by Chris Mason

parent 647f63bd36

commit 1e7bac1ef7

1 changed files with 6 additions and 0 deletions

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fs/btrfs/qgroup.c

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