Btrfs: fix possible memory leak in the find_parent_nodes()
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>
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@ -918,7 +918,8 @@ again:
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ref->parent, bsz, 0);
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if (!eb || !extent_buffer_uptodate(eb)) {
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free_extent_buffer(eb);
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return -EIO;
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ret = -EIO;
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goto out;
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}
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ret = find_extent_in_eb(eb, bytenr,
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*extent_item_pos, &eie);
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