diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index f0556e654116..5b4be382a1d7 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -282,6 +282,10 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); + /* crtc index is used with 32bit bitmasks */ + if (WARN_ON(config->num_crtc >= 32)) + return -EINVAL; + crtc->dev = dev; crtc->funcs = funcs; |