netdev - Re: [Patch net 2/2] net_sched: always call ->destroy when ->init() fails

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Date:	Tue, 28 Oct 2014 15:58:26 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	kaber@...sh.net
Cc:	cwang@...pensource.com, eric.dumazet@...il.com,
	xiyou.wangcong@...il.com, netdev@...r.kernel.org,
	wang.bo116@....com.cn, john.r.fastabend@...el.com,
	edumazet@...gle.com, vtlam@...gle.com
Subject: Re: [Patch net 2/2] net_sched: always call ->destroy when ->init()
 fails

From: Patrick McHardy <kaber@...sh.net>
Date: Sat, 25 Oct 2014 02:04:00 +0100

>> Really, we don't have to make all ->init() doing cleanup by itself.
> 
> Are you seriously suggesting that it would be better to have ->destroy()
> check what parts were actually initialized and what needs to be cleaned
> up instead of assuming a consistent state and have the only function that
> actually knows the current state on error (->init()) do its own cleanup?
> 
> That's not even worth arguing about, its utterly and completely wrong.

I agree with Patrick here.
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