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From 612320f7a3a766263b6bc727c0d5fd1be1a178b3 Mon Sep 17 00:00:00 2001
From: "Jerry (Fangzhi) Zuo" <Jerry.Zuo@amd.com>
Date: Thu, 24 Jan 2019 11:46:49 -0500
Subject: [PATCH 1218/2940] drm/amd/display: Clear dc_sink after it gets
released
[Why]
The dc_sink was released but the pointer on the aconnector was
not cleared.
[How]
Clear it.
Change-Id: Ifc8d72f51b5c6600d63b88f3011aef8ffc957e66
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 73f8e8fa6edb..44c1a02e6452 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -173,8 +173,10 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector)
aconnector->edid = edid;
}
- if (aconnector->dc_sink && aconnector->dc_sink->sink_signal == SIGNAL_TYPE_VIRTUAL)
+ if (aconnector->dc_sink && aconnector->dc_sink->sink_signal == SIGNAL_TYPE_VIRTUAL) {
dc_sink_release(aconnector->dc_sink);
+ aconnector->dc_sink = NULL;
+ }
if (!aconnector->dc_sink) {
struct dc_sink *dc_sink;
--
2.17.1
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