diff options
| author | Zhao Yakui | 2014-04-17 10:37:36 +0800 |
|---|---|---|
| committer | Daniel Vetter | 2014-05-05 09:08:44 +0200 |
| commit | b1a93306ed2686a7064ed54f99203b6db852ca27 (patch) | |
| tree | 3f572cc008c20b6bb9ab0d43a47b631aaec0e9f6 | |
| parent | fd3c269f8ff940cc0fbb3b7f7e84c0572f6f759a (diff) | |
drm/i915: Update the restrict check to filter out wrong Ring ID passed by user-space
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_execbuffer.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index b9dcc2869edc..0aa1b4cb1f6d 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1037,7 +1037,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, if (args->flags & I915_EXEC_IS_PINNED) flags |= I915_DISPATCH_PINNED; - if ((args->flags & I915_EXEC_RING_MASK) > I915_NUM_RINGS) { + if ((args->flags & I915_EXEC_RING_MASK) > LAST_USER_RING) { DRM_DEBUG("execbuf with unknown ring: %d\n", (int)(args->flags & I915_EXEC_RING_MASK)); return -EINVAL; diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 54839165eb6d..7c0eb33d5027 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -63,6 +63,7 @@ struct intel_ring_buffer { VECS, } id; #define I915_NUM_RINGS 4 +#define LAST_USER_RING (VECS + 1) u32 mmio_base; void __iomem *virtual_start; struct drm_device *dev; |