backend/drm: fix atomic commits when the GAMMA_LUT prop is missing
We already have the logic to fallback to the legacy interface above. We
just need to avoid calling atomic_add with a zero prop ID.
Closes:
@@ -200,7 +200,9 @@ static bool atomic_crtc_commit(struct wlr_drm_backend *drm,
atomic_add(&atom, crtc->id, crtc->props.mode_id, crtc->mode_id);
atomic_add(&atom, crtc->id, crtc->props.active, crtc->active);
if (crtc->active) {
+ if (crtc->props.gamma_lut != 0) {
atomic_add(&atom, crtc->id, crtc->props.gamma_lut, crtc->gamma_lut);
+ }
set_plane_props(&atom, drm, crtc->primary, crtc->id, 0, 0);
if (crtc->cursor) {
if (crtc->cursor->cursor_enabled) {
