message: Fix memory leak in swTableColumn_add()
diff: @@ -83,9 +83,14 @@ swTable* swTable_new(uint32_t rows_size)
  int swTableColumn_add(swTable *table, char *name, int len, int type, int size)
  {
  swTableColumn *col = sw_malloc(sizeof(swTableColumn));
  + if (!col)
  + {
  + return SW_ERR;
  + }
  col->name = swString_dup(name, len);
  if (!col->name)
  {
  + sw_free(col);
  return SW_ERR;
  }
  switch(type)
  