From baf132f97c5fa25c0dcec59369e225e759ab22e6 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 25 Jan 2016 13:05:00 -0800 Subject: [PATCH] drm/vc4: Validate that WAIT_BO padding is cleared. This is ABI future-proofing if we ever want to extend the pad to mean something. Signed-off-by: Eric Anholt --- drivers/gpu/drm/vc4/vc4_gem.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/gpu/drm/vc4/vc4_gem.c +++ b/drivers/gpu/drm/vc4/vc4_gem.c @@ -761,6 +761,9 @@ vc4_wait_bo_ioctl(struct drm_device *dev struct drm_gem_object *gem_obj; struct vc4_bo *bo; + if (args->pad != 0) + return -EINVAL; + gem_obj = drm_gem_object_lookup(dev, file_priv, args->handle); if (!gem_obj) { DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);