[PATCH v2] Fix VDSO gettimeofday() when called with NULL struct timeval.

[Benjamin Herrenschmidt]

On Tue, 2007-06-26 at 09:50 +1000, Tony Breeds wrote:
> Updated to include feedback from Ben and Segher, also reposition the
> compare in the 64bit VDSO to catch all the references to tv.
> 
> From: Tony Breeds <tony at bakeyournoodle.com>

Acked-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>