Sort Comments by GD Star Rating Thumbs Up. Store thumbs up count in the comment_karma column

comments.php

<?php   /* Sort comments by number of thumbs up */
	$post_id = get_the_ID();
	$comments = get_comments(array(
		'post_id'  => $post_id, 
		"orderby"  => "comment_karma",
		"order"    => "DESC"
	));
?>
<?php wp_list_comments('', $comments); ?>

functions.php

add_action('gdsr_vote_thumb_comment', 'CUSTOM_update_karma', 10, 4);

function CUSTOM_update_karma($id, $user, $vote_value) {
	$this_comment = get_comment($id);
	$new_comment_karma = $this_comment->comment_karma + $vote_value;
		
	$commentarr = array();
	$commentarr['comment_ID'] = $id;
	$commentarr['comment_karma'] = $new_comment_karma;
	wp_update_comment( $commentarr );
}