[PATCH 1/9] drm: Warn about negative sizes when calculating scale factor

[Chris Wilson]

On Tue, Jul 26, 2016 at 07:06:56PM +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Passing negative width/hight to scale factor calculations is not
> legal. Let's WARN if that happens.

Does this get called with user controllable inputs? A quick grep leads
me to drm_primary_helper_update() which suggests no. Did I miss a
potential user controllable WARN->panic?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre