From: Chris Wright <[EMAIL PROTECTED]>
Date: Wed, 7 Mar 2007 23:10:48 -0800

> Make sure not to copy_to_user more than user's buffer can handle (we
> already checked the min, just use it) in ipv6_getsockopt_sticky.  And
> while there, minor whitespace cleanup now that ipv6_getsockopt_sticky
> call can nicely fit on one line.
> 
> Signed-off-by: Chris Wright <[EMAIL PROTECTED]>

I wonder about this :-)

This gives the user now way to figure out that ipv6_optlen(hdr) is
larger than the len they supplied.

In other situations usually we validate the length and return -EINVAL
if it is too small.

That might be the thing to do in this case too.
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