From 7bb6fb8dd958ae773ac205282e3c0b56c22e01ed Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 24 Apr 2012 08:22:52 +0200
Subject: [PATCH] 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: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/i915_gem.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b402d70dc78b..1b808d041949 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -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;
--
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