netdev - Re: [PATCH net] ip6_tunnel: fix error code when tunnel exists

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Date:	Fri, 13 Mar 2015 15:46:53 +0100
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	davem@...emloft.net, netdev@...r.kernel.org,
	me@...rre-cheynier.net,
	Steffen Klassert <steffen.klassert@...unet.com>
Subject: Re: [PATCH net] ip6_tunnel: fix error code when tunnel exists

Le 13/03/2015 14:43, Eric Dumazet a écrit :
[snip]
> These IS_ERR_OR_NULL(t) looks like defensive/lazy programming to me.
>
> A NULL pointer should not be allowed here.
>
> If t is not valid, it should be a plain error code mapping.
>
> I wish we get rid of all IS_ERR_OR_NULL() uses in networking tree,
> instead of adding plenty of them.
Ok, I agree. It was to minimize the patch.
I will rework it.
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