From 3efc0738b65437a904888cafe2421cead945e7aa Mon Sep 17 00:00:00 2001
From: nacin <nacin@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Tue, 14 Dec 2010 19:17:49 +0000
Subject: [PATCH] Revert to WP_DEFAULT_THEME if a child theme is in use and no
 style.css is present. fixes #15712.

git-svn-id: http://svn.automattic.com/wordpress/trunk@16924 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/theme.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/wp-includes/theme.php b/wp-includes/theme.php
index 420a6844e..838bb27cf 100644
--- a/wp-includes/theme.php
+++ b/wp-includes/theme.php
@@ -1286,6 +1286,11 @@ function validate_current_theme() {
 		switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME );
 		return false;
 	}
+	
+	if ( is_child_theme() && ! file_exists( get_stylesheet_directory() . '/style.css' ) ) {
+		switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME );
+		return false;
+	}
 
 	return true;
 }