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Btrfs: return error code to caller when btrfs_previous_item fails
The error code is returned instead of calling BUG_ON when btrfs_previous_item returns the error. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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@ -949,14 +949,14 @@ static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans,
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if (ret > 0) {
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ret = btrfs_previous_item(root, path, key.objectid,
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BTRFS_DEV_EXTENT_KEY);
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BUG_ON(ret);
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if (ret)
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goto out;
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leaf = path->nodes[0];
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btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
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extent = btrfs_item_ptr(leaf, path->slots[0],
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struct btrfs_dev_extent);
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BUG_ON(found_key.offset > start || found_key.offset +
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btrfs_dev_extent_length(leaf, extent) < start);
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ret = 0;
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} else if (ret == 0) {
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leaf = path->nodes[0];
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extent = btrfs_item_ptr(leaf, path->slots[0],
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@ -969,6 +969,7 @@ static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans,
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ret = btrfs_del_item(trans, root, path);
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BUG_ON(ret);
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out:
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btrfs_free_path(path);
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return ret;
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}
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