Valgrind warnings found after bug#32943 and after merge from -main

into -engines tree.

hander::table_share was not updated after changing table->s.

sql/ha_partition.cc

@@ -1646,6 +1646,15 @@ void ha_partition::change_table_ptr(TABLE *table_arg, TABLE_SHARE *share)
   {
     (*file_array)->change_table_ptr(table_arg, share);
   } while (*(++file_array));
+  if (m_added_file && m_added_file[0])
+  {
+    /* if in middle of a drop/rename etc */
+    file_array= m_added_file;
+    do
+    {
+      (*file_array)->change_table_ptr(table_arg, share);
+    } while (*(++file_array));
+  }
 }
 
 /*

sql/sql_base.cc

@@ -747,6 +747,7 @@ void close_handle_and_leave_table_as_lock(TABLE *table)
   table->db_stat= 0;                            // Mark file closed
   release_table_share(table->s, RELEASE_NORMAL);
   table->s= share;
+  table->file->change_table_ptr(table, table->s);
 
   DBUG_VOID_RETURN;
 }