Fixed issues found by buildbot & valgrind:

- Wrong thd uses in Item_subselect, could lead to crash
- Inititalize uninitialized variable in new autoincrement handling code


sql/handler.cc:
  More DBUG_PRINT
sql/item_subselect.cc:
  Wrong thd uses in Item_subselect, could lead to crash
storage/innobase/handler/ha_innodb.cc:
  Initialize variable needed by upper level. This only happens when auto-increment value wraps over.
storage/xtradb/handler/ha_innodb.cc:
  Initialize variable needed by upper level. This only happens when auto-increment value wraps over.

1 files changed, 2 insertions, 1 deletions

diff --git a/sql/handler.cc b/sql/handler.cc
index b06aa4255fd..8891b29138c 100644
--- a/sql/handler.cc
+++ b/sql/handler.cc
@@ -2621,7 +2621,8 @@ int handler::update_auto_increment()
   if (unlikely(nr == ULONGLONG_MAX))
       DBUG_RETURN(HA_ERR_AUTOINC_ERANGE);
 
-  DBUG_PRINT("info",("auto_increment: %lu", (ulong) nr));
+  DBUG_PRINT("info",("auto_increment: %llu  nb_reserved_values: %llu",
+                     nr, nb_reserved_values));
 
   /* Store field without warning (Warning will be printed by insert) */
   save_count_cuted_fields= thd->count_cuted_fields;