It looks to be clearly the case that there needs to be some error handling code wrapped around the file write in _getlongresp.  Your patch doesn't do just that, however, so it seems like there may be other errors you are also worried about?  Can you explain their nature?  They should be dealt with separately from the "errors writing to file" issue, though, which is a special case.  And that case should be dealt with by draining the response before returning.