[Wordpress] Infinte loop on all posts page

index.php

<?php
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$perpage = 5;

$args = array (
'pagination'      => true,
'posts_per_page'  => $perpage,
'post_type'       => 'post',
'paged'           => $paged
);

$my_query = null;
$my_query = new WP_Query($args);
$total_pages = $my_query->max_num_pages;

if ( $my_query->have_posts() ) : while ( $my_query->have_posts() ) : $my_query->the_post(); 

// Extract posts information here

endwhile;

if ($total_pages > 1){ ?>
<nav class="page-navigation">
 <div class="nav-previous alignleft"><?php next_posts_link( 'Older posts' ); ?></div>
 <div class="nav-next alignright"><?php previous_posts_link( 'Newer posts' ); ?></div>
</nav>
<?php } 
endif;
wp_reset_query();
?>