Btrfs: avoid double free of fs_info->qgroup_ulist

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When btrfs_read_qgroup_config or btrfs_quota_enable return non-zero, we've
already freed the fs_info->qgroup_ulist. The final btrfs_free_qgroup_config
called from quota_disable makes another ulist_free(fs_info->qgroup_ulist)
call.

We set fs_info->qgroup_ulist to NULL on the mentioned error paths, turning
the ulist_free in btrfs_free_qgroup_config into a noop.

Cc: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

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Jan Schmidt 2013-05-28 15:47:23 +00:00 • committed by Josef Bacik

parent 4373519db4

commit eb1716af88

1 changed files with 6 additions and 2 deletions

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fs/btrfs/qgroup.c

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