Add function_exists() check

Co-authored-by: Simon L. <szaimen@e.mail.de>
Signed-off-by: Git'Fellow <12234510+solracsf@users.noreply.github.com>

diff --git a/lib/private/Files/Storage/Local.php b/lib/private/Files/Storage/Local.php
index 30b581a863d70fdf1313fc940f100ce29bba9efa..a375a5443003d88d496c5dd1412063955606f389 100644 (file)
--- a/lib/private/Files/Storage/Local.php
+++ b/lib/private/Files/Storage/Local.php
@@ -418,7 +418,7 @@ class Local extends \OC\Files\Storage\Common {
                        // disk_free_space doesn't work on files
                        $sourcePath = dirname($sourcePath);
                }
-               $space = is_dir($sourcePath) ? disk_free_space($sourcePath) : false;
+               $space = (function_exists('disk_free_space') && is_dir($sourcePath)) ? disk_free_space($sourcePath) : false;
                if ($space === false || is_null($space)) {
                        return \OCP\Files\FileInfo::SPACE_UNKNOWN;
                }