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Commit 7bb6fb8d authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm/i915: disallow gem ums init ioctl for kms 



This ioctl used in a kms driver is only useful to create massive
havoc.

v2: Bail out with -ENODEV as suggested by Chris Wilson.

Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 1cff8f6b

drivers/gpu/drm/i915/i915_gem.c

+3 −0
Original line number Diff line number Diff line
@@ -140,6 +140,9 @@ i915_gem_init_ioctl(struct drm_device *dev, void *data, 
{

	struct drm_i915_gem_init *args = data;



	if (drm_core_check_feature(dev, DRIVER_MODESET))

		return -ENODEV;



	if (args->gtt_start >= args->gtt_end ||

	    (args->gtt_end | args->gtt_start) & (PAGE_SIZE - 1))

		return -EINVAL;