[PATCH 1/2] drm/mst: Don't ignore the MST PBN self-test result

[Imre Deak]

Otherwise this call would have no effect.

Caught by Coverity.

Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c 
b/drivers/gpu/drm/drm_dp_mst_topology.c
index 6ed90a2..8f749e6 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -2854,7 +2854,9 @@ int drm_dp_mst_topology_mgr_init(struct 
drm_dp_mst_topology_mgr *mgr,
        if (!mgr->proposed_vcpis)
                return -ENOMEM;
        set_bit(0, &mgr->payload_mask);
-       test_calc_pbn_mode();
+       if (test_calc_pbn_mode() < 0)
+               DRM_ERROR("MST PBN self-test failed\n");
+
        return 0;
 }
 EXPORT_SYMBOL(drm_dp_mst_topology_mgr_init);
-- 
2.5.0