few small bug fixes ...

sql/sql_delete.cc:
  A better fix for safe updates
sql/sql_table.cc:
  A fix for foreign key handling ...

sql/sql_delete.cc

@@ -90,7 +90,7 @@ int mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ORDER *order,
   if (!table->quick_keys)
   {
     thd->lex.select_lex.options|=QUERY_NO_INDEX_USED;
-    if (safe_update && use_limit)
+    if (safe_update && !using_limit)
     {
       delete select;
       send_error(thd,ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE);

sql/sql_table.cc

@@ -523,7 +523,7 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
 
   key_iterator.rewind();
   key_number=0;
-  for (; (key=key_iterator++) ; key_info++, key_number++)
+  for (; (key=key_iterator++) ; key_number++)
   {
     uint key_length=0;
     key_part_spec *column;
@@ -734,6 +734,7 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
       my_error(ER_TOO_LONG_KEY,MYF(0),max_key_length);
       DBUG_RETURN(-1);
     }
+    key_info++;
   }
   if (!unique_key && !primary_key &&
       (file->table_flags() & HA_REQUIRE_PRIMARY_KEY))