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drm/i915: Sanity check user framebuffer parameters on creation

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2010-08-08 12:34:44 +01:00
parent 763a4a0191
commit 57cd6508da
1 changed files with 17 additions and 0 deletions
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17
drivers/gpu/drm/i915/intel_display.c
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@ -5371,8 +5371,25 @@ int intel_framebuffer_init(struct drm_device *dev,
struct drm_mode_fb_cmd *mode_cmd,
struct drm_gem_object *obj)
{
struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
int ret;
if (obj_priv->tiling_mode == I915_TILING_Y)
return -EINVAL;
if (mode_cmd->pitch & 63)
return -EINVAL;
switch (mode_cmd->bpp) {
case 8:
case 16:
case 24:
case 32:
break;
default:
return -EINVAL;
}
ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
if (ret) {
DRM_ERROR("framebuffer init failed %d\n", ret);