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path: root/drivers/gpu/drm/drm_dp_mst_topology.c
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Diffstat (limited to 'drivers/gpu/drm/drm_dp_mst_topology.c')
-rw-r--r--drivers/gpu/drm/drm_dp_mst_topology.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 5d3c1d379277..021c5a98db09 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -5001,6 +5001,9 @@ int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
int i, ret = 0;
for_each_new_mst_mgr_in_state(state, mgr, mst_state, i) {
+ if (!mgr->mst_state)
+ continue;
+
ret = drm_dp_mst_atomic_check_vcpi_alloc_limit(mgr, mst_state);
if (ret)
break;