[Intel-gfx] [PATCH] drm/i915: Prevent divide-by-zero in debugfs/i915_rps_boost_info

[Szwichtenberg, Radoslaw]

On Sat, 2017-02-18 at 11:27 +0000, Chris Wilson wrote:
> Either by chance, or by misread, the current evaluation interval may be
> zero. If that is the case, don't divide by it!
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg at intel.com>