Same as we did for i915, but for nouveau this time. Additionally, we grab a malloc reference to the port that lasts for the entire lifetime of nv50_mstc, which gives us the guarantee that mstc->port will always point to valid memory for as long as the mstc stays around.
Signed-off-by: Lyude Paul lyude@redhat.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@redhat.com Cc: Jerry Zuo Jerry.Zuo@amd.com Cc: Harry Wentland harry.wentland@amd.com Cc: Juston Li juston.li@intel.com --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 18 +++++------------- 1 file changed, 5 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 982054bbcc8b..157d208d37b5 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -709,8 +709,7 @@ nv50_msto_cleanup(struct nv50_msto *msto)
NV_ATOMIC(drm, "%s: msto cleanup\n", msto->encoder.name);
- if (mstc->port) - drm_dp_mst_deallocate_vcpi(&mstm->mgr, mstc->port); + drm_dp_mst_deallocate_vcpi(&mstm->mgr, mstc->port);
msto->mstc = NULL; msto->head = NULL; @@ -735,7 +734,7 @@ nv50_msto_prepare(struct nv50_msto *msto) };
NV_ATOMIC(drm, "%s: msto prepare\n", msto->encoder.name); - if (mstc->port && mstc->port->vcpi.vcpi > 0) { + if (mstc->port->vcpi.vcpi > 0) { struct drm_dp_payload *payload = nv50_msto_payload(msto); if (payload) { args.vcpi.start_slot = payload->start_slot; @@ -832,8 +831,7 @@ nv50_msto_disable(struct drm_encoder *encoder) struct nv50_mstc *mstc = msto->mstc; struct nv50_mstm *mstm = mstc->mstm;
- if (mstc->port) - drm_dp_mst_reset_vcpi_slots(&mstm->mgr, mstc->port); + drm_dp_mst_reset_vcpi_slots(&mstm->mgr, mstc->port);
mstm->outp->update(mstm->outp, msto->head->base.index, NULL, 0, 0); mstm->modified = true; @@ -945,7 +943,7 @@ nv50_mstc_detect(struct drm_connector *connector, bool force) enum drm_connector_status conn_status; int ret;
- if (!mstc->port) + if (drm_connector_is_unregistered(connector)) return connector_status_disconnected;
ret = pm_runtime_get_sync(connector->dev->dev); @@ -966,8 +964,7 @@ nv50_mstc_destroy(struct drm_connector *connector) struct nv50_mstc *mstc = nv50_mstc(connector);
drm_connector_cleanup(&mstc->connector); - if (mstc->port) - drm_dp_mst_put_port_malloc(mstc->port); + drm_dp_mst_put_port_malloc(mstc->port);
kfree(mstc); } @@ -1081,11 +1078,6 @@ nv50_mstm_destroy_connector(struct drm_dp_mst_topology_mgr *mgr,
drm_fb_helper_remove_one_connector(&drm->fbcon->helper, &mstc->connector);
- drm_modeset_lock(&drm->dev->mode_config.connection_mutex, NULL); - drm_dp_mst_put_port_malloc(mstc->port); - mstc->port = NULL; - drm_modeset_unlock(&drm->dev->mode_config.connection_mutex); - drm_connector_put(&mstc->connector); }