Re: [PATCH] net: rtnetlink: Fix rtnl_dereference return value is NULL

[Eric Dumazet]

On 7/8/21 9:37 AM, Yajun Deng wrote:
> rtnl_dereference() may be return NULL in rtnl_unregister(),
> so add this case handling.
> 
> Signed-off-by: Yajun Deng <yajun.deng@xxxxxxxxx>
> ---
>  net/core/rtnetlink.c | 17 ++++++++++-------
>  1 file changed, 10 insertions(+), 7 deletions(-)
> 

I do not see a use case for this.
None of rtnl_unregister() callers check the return value anyway.

Can you elaborate ?

If this was a bug fix, we would need a Fixes: tag.

If this is something you need for an upcoming work, you would need to tag
this for net-next tree.

Thanks.