diff options
Diffstat (limited to 'drivers/gpu/drm/display')
| -rw-r--r-- | drivers/gpu/drm/display/drm_dp_mst_topology.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c index 0fbfdd23ef4e..8433b9c59cf2 100644 --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c @@ -5469,9 +5469,13 @@ EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc); * - %-ENOSPC, if the new state is invalid, because of BW limitation * @failing_port is set to: * - The non-root port where a BW limit check failed + * with all the ports downstream of @failing_port passing + * the BW limit check. * The returned port pointer is valid until at least * one payload downstream of it exists. * - %NULL if the BW limit check failed at the root port + * with all the ports downstream of the root port passing + * the BW limit check. * - %-EINVAL, if the new state is invalid, because the root port has * too many payloads. */ @@ -5487,17 +5491,16 @@ int drm_dp_mst_atomic_check_mgr(struct drm_atomic_state *state, if (!mgr->mst_state) return 0; - ret = drm_dp_mst_atomic_check_payload_alloc_limits(mgr, mst_state); - if (ret) - return ret; - mutex_lock(&mgr->lock); ret = drm_dp_mst_atomic_check_mstb_bw_limit(mgr->mst_primary, mst_state, failing_port); mutex_unlock(&mgr->lock); - return ret < 0 ? ret : 0; + if (ret < 0) + return ret; + + return drm_dp_mst_atomic_check_payload_alloc_limits(mgr, mst_state); } EXPORT_SYMBOL(drm_dp_mst_atomic_check_mgr); |