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Btrfs: fix possible memory leak in the find_parent_nodes()

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In the find_parent_nodes(), if read_tree_block() fails, we can
not return directly, we should free some allocated memory otherwise
memory leak happens.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Wang Shilong 2013-05-08 08:10:25 +00:00 committed by Josef Bacik
parent 4968810752
commit c16c2e2e51
1 changed files with 2 additions and 1 deletions
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3
fs/btrfs/backref.c
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@ -918,7 +918,8 @@ again:
ref->parent, bsz, 0);
if (!eb || !extent_buffer_uptodate(eb)) {
free_extent_buffer(eb);
return -EIO;
ret = -EIO;
goto out;
}
ret = find_extent_in_eb(eb, bytenr,
*extent_item_pos, &eie);