btrfs: make btrfs_set_root_node void
This is fairly trivial - btrfs_set_root_node() - always returns zero so we can just make it void. All callers ignore the return code now anyway. I also made sure to check that none of the functions that btrfs_set_root_node() calls returns an error that we might have needed to catch and pass back. Signed-off-by:Mark Fasheh <mfasheh@suse.com> Signed-off-by:
Chris Mason <chris.mason@oracle.com>
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ff1f2b44
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