PHP fatal errors on advagg.module line 535: Only variables can be passed by reference [#1986326]

I just tried both the alpha version of this module and the dev version and I'm getting the same errors:

On 7.x-2.0-alpha1: [Fri May 03 14:12:53 2013] [error] [client 24.5.79.61] FastCGI: server "/web/website/fcgi/php-fcgi" stderr: PHP Fatal error: Only variables can be passed by reference in /web/website/beta/staging/www/sites/all/modules/advagg/advagg.module on line 504

On 7.x-2.x-dev: [Fri May 03 14:19:59 2013] [error] [client 24.5.79.61] FastCGI: server "/web/website/fcgi/php-fcgi" stderr: PHP Fatal error: Only variables can be passed by reference in /web/website/beta/staging/www/sites/all/modules/advagg/advagg.module on line 535, referer: https://staging.beta.website.com/admin/config/development/performance

Both of those line numbers correspond to this line:
$variables['page_top'] = drupal_render($variables['page']['page_top']);

Comment	File	Size	Author
#7	advagg-1986326-7-fix-notice.patch	807 bytes	mikeytown2
#7
#5	advagg-page-vars-error.diff	931 bytes	erikhopp
#5
#4	advagg-1986326-4-only-render-isset.patch	1.01 KB	mikeytown2
#4

Support from Acquia helps fund testing for Drupal Acquia logo

Comments

Active

» Needs review

File	Size
advagg-1986326-4-only-render-isset.patch	1.01 KB

I assumed that $variables['page']['page_top'] and $variables['page']['page_bottom'] exists as it does in core. Seeing how you're the second one the report this I have a patch for you to try out.