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Commit 1e1a5f8f authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Sean Paul
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drm: Warn about negative sizes when calculating scale factor 



Passing negative width/hight to scale factor calculations is not
legal. Let's WARN if that happens.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarSean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1469549224-1860-2-git-send-email-ville.syrjala@linux.intel.com
parent 31ad61e4

drivers/gpu/drm/drm_rect.c

+1 −1
Original line number Diff line number Diff line
@@ -100,7 +100,7 @@ static int drm_calc_scale(int src, int dst) 
{

	int scale = 0;



	if (src < 0 || dst < 0)

	if (WARN_ON(src < 0 || dst < 0))

		return -EINVAL;



	if (dst == 0)