bk commit into 4.1 tree (holyfoot:1.2599) BUG#25492

[holyfoot]

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ChangeSet@stripped, 2007-01-29 11:48:31+04:00, holyfoot@stripped +1 -0
  bug #25492 (Invalid deallocation in mysql_stmt_fetch)
  Operating with the prepared statements we don't alloc MYSQL_DATA structure,
  but use MYSQL_STMT's field instead (to increase performance by reducing
  malloc calls).
  So we shouldn't free this structure as we did before.

  libmysqld/lib_sql.cc@stripped, 2007-01-29 11:48:30+04:00, holyfoot@stripped +1 -1
    we only should free data->alloc here, as the 'data' is a member
    of STMT structure

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	holyfoot
# Host:	hfmain.(none)
# Root:	/home/hf/work/25492/my41-25492

--- 1.135/libmysqld/lib_sql.cc	2007-01-29 11:48:34 +04:00
+++ 1.136/libmysqld/lib_sql.cc	2007-01-29 11:48:34 +04:00
@@ -269,7 +269,7 @@ int emb_unbuffered_fetch(MYSQL *mysql, c
     *row= NULL;
     if (data)
     {
-      free_rows(data);
+      free_root(&data->alloc,MYF(0));
       ((THD*)mysql->thd)->data= NULL;
     }
   }