drm/i915: Sanity check user framebuffer parameters on creation (57cd6508) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/gpu/drm/i915/intel_display.c

+17 −0

Original line number	Diff line number	Diff line
		@@ -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);