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drm/i915: disallow gem ums init ioctl for kms

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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: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-04-24 08:22:52 +02:00
parent 1cff8f6b4c
commit 7bb6fb8dd9
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_gem.c
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@ -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;