[Xen-devel] Re: [Xen-changelog] [xen-unstable] linux: Fix xenbus device write function.

[John Levon <levon@xxxxxxxxxxxxxxxxx>]

On Wed, Mar 07, 2007 at 11:30:21AM -0800, Keir Fraser wrote:

>       u->len += len;
> -     if (u->len < (sizeof(u->u.msg) + u->u.msg.len))
> -             return len;
> +     if ((u->len < sizeof(u->u.msg)) ||
> +         (u->len < (sizeof(u->u.msg) + u->u.msg.len)))
> +             return rc;

What is this trying to achieve?

regards
john

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