netdev - Re: [PATCH 1/2] IPv6: Fix the return value of get destination options with NULL data pointer

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Message-Id: <20080528.210722.59120277.yoshfuji@linux-ipv6.org>
Date:	Wed, 28 May 2008 21:07:22 +0900 (JST)
From:	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>
To:	yanghy@...fujitsu.com
Cc:	davem@...set.davemloft.net, netdev@...r.kernel.org,
	yoshfuji@...ux-ipv6.org
Subject: Re: [PATCH 1/2] IPv6: Fix the return value of get destination
 options with NULL data pointer

In article <483D1693.4080805@...fujitsu.com> (at Wed, 28 May 2008 16:23:47 +0800), Yang Hongyang <yanghy@...fujitsu.com> says:

> If we pass NULL data buffer to getsockopt(), it will return 0,
> and the option length is set to -EFAULT:
>     getsockopt(sk, IPPROTO_IPV6, IPV6_DSTOPTS, NULL, &len);
> 
> This is because ipv6_getsockopt_sticky() will return -EFAULT or
> -EINVAL if some error occur.
> 
> This patch fix this problem.

I'm going to apply this in my tree.  Thanks.

--yoshfuji
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