diff -u -r1.15.2.4 book_access.module
--- book_access.module	21 Nov 2009 19:39:12 -0000	1.15.2.4
+++ book_access.module	22 Nov 2009 23:03:56 -0000
@@ -197,8 +197,7 @@
       }
 
       $results = db_query(
-        "SELECT nid FROM {node_access} WHERE realm = 'book_access' AND gid IN (" ,
-          db_placeholders($roles, 'int') . ") AND grant_update > 0",
+        "SELECT nid FROM {node_access} WHERE realm = 'book_access' AND gid IN (" . db_placeholders($roles, 'int') . ") AND grant_update > 0",
         $roles
       );
 
@@ -373,7 +372,7 @@
         db_query("SELECT 1 FROM {book_access} WHERE nid = %d AND rid = %d")
       );
 
-      drupal_write_record('book_access', $row, $bool ? array('nid', 'rid') : NULL);
+      drupal_write_record('book_access', $row, $bool ? array('nid', 'rid') : array());
     }
   }