Re: [PATCH 3/5] net: Set fput_needed iff FDPUT_FPUT is set

[Al Viro]

On Thu, Aug 06, 2020 at 07:53:16PM +0800, linmiaohe wrote:
> From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
> 
> We should fput() file iff FDPUT_FPUT is set. So we should set fput_needed
> accordingly.
> 
> Fixes: 00e188ef6a7e ("sockfd_lookup_light(): switch to fdget^W^Waway from fget_light")

Explain, please.  We are getting it from fdget(); what else can we get in flags there?