diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 352f5d6c763ccb6f42888a33b7fa1cb4396d5aad..b3adf14450205db60941bd22554c9a5ecf00ba09 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1772,7 +1772,7 @@ static int drm_dp_get_vc_payload_bw(int dp_link_bw, int dp_link_count)
 	case DP_LINK_BW_5_4:
 		return 10 * dp_link_count;
 	}
-	return 0;
+	BUG();
 }
 
 /**