btrfs: qgroup: Fix possible leak in btrfs_add_qgroup_relation()

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Commit 9c8b35b1ba ("btrfs: quota: Automatically update related qgroups or
mark INCONSISTENT flags when assigning/deleting a qgroup relations.")
introduced the allocation of a temporary ulist in function
btrfs_add_qgroup_relation() and added the corresponding cleanup to the out
path. However, the allocation was introduced before the src/dst level check
that directly returns. Fix the possible leakage of the ulist by moving the
allocation after the input validation. Detected by Coverity CID 1295988.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

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Christian Engelmayer 2015-05-02 17:19:55 +02:00 • committed by Chris Mason

parent 35c766425a

commit ab3680dd18

1 changed files with 4 additions and 4 deletions

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fs/btrfs/qgroup.c

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