From 441388a8a73f905359e60518cfc18eca6aed2b6a Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Fri, 29 Jan 2016 14:44:28 +0200
Subject: [PATCH] drm/mst: Don't ignore the MST PBN self-test result
Otherwise this call would have no effect.
Caught by Coverity.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.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 fe273b681fe50..2b7c2f0688340 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -2855,7 +2855,9 @@ 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);
--
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