We should allow SIGIO and things to interrupt us before we get to the no-error stage of the commit process. This code is effectively copied from drm_atomic_helper_commit().
Signed-off-by: Eric Anholt <[email protected]> --- drivers/gpu/drm/vc4/vc4_kms.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c index bc6ecdc6f104..6b1ccea76243 100644 --- a/drivers/gpu/drm/vc4/vc4_kms.c +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -142,6 +142,16 @@ static int vc4_atomic_commit(struct drm_device *dev, return ret; } + if (!nonblock) { + ret = drm_atomic_helper_wait_for_fences(dev, state, true); + if (ret) { + drm_atomic_helper_cleanup_planes(dev, state); + kfree(c); + up(&vc4->async_modeset); + return ret; + } + } + for_each_plane_in_state(state, plane, new_state, i) { if ((plane->state->fb != new_state->fb) && new_state->fb) { struct drm_gem_cma_object *cma_bo = -- 2.11.0
