netdev - Re: [Patch net] genetlink: clean up family attributes allocations

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Date:   Fri, 12 Jun 2020 14:05:46 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     xiyou.wangcong@...il.com
Cc:     netdev@...r.kernel.org, idosch@...sch.org
Subject: Re: [Patch net] genetlink: clean up family attributes allocations

From: Cong Wang <xiyou.wangcong@...il.com>
Date: Fri, 12 Jun 2020 00:16:55 -0700

> genl_family_rcv_msg_attrs_parse() and genl_family_rcv_msg_attrs_free()
> take a boolean parameter to determine whether allocate/free the family
> attrs. This is unnecessary as we can just check family->parallel_ops.
> More importantly, callers would not need to worry about pairing these
> parameters correctly after this patch.
> 
> And this fixes a memory leak, as after commit c36f05559104
> ("genetlink: fix memory leaks in genl_family_rcv_msg_dumpit()")
> we call genl_family_rcv_msg_attrs_parse() for both parallel and
> non-parallel cases.
> 
> Fixes: c36f05559104 ("genetlink: fix memory leaks in genl_family_rcv_msg_dumpit()")
> Reported-by: Ido Schimmel <idosch@...sch.org>
> Signed-off-by: Cong Wang <xiyou.wangcong@...il.com>

Applied, thanks Cong.