Ping for both patches.
Andrey
________________________________
From: Andrey Grodzovsky <andrey.grodzov...@amd.com>
Sent: 14 October 2020 13:24
To: amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org>
Cc: Kazlauskas, Nicholas <nicholas.kazlaus...@amd.com>; Wentland, Harry
<harry.wentl...@amd.com>; Pan, Xinhui <xinhui....@amd.com>; Grodzovsky, Andrey
<andrey.grodzov...@amd.com>
Subject: [PATCH 2/2] drm/amd/display: Avoid MST manager resource leak.
On connector destruction call drm_dp_mst_topology_mgr_destroy
to release resources allocated in drm_dp_mst_topology_mgr_init.
Do it only if MST manager was initialized before otherwsie a crash
is seen on driver unload/device unplug.
Signed-off-by: Andrey Grodzovsky <andrey.grodzov...@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index a72447d..64799c4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5170,6 +5170,13 @@ static void amdgpu_dm_connector_destroy(struct
drm_connector *connector)
struct amdgpu_device *adev = drm_to_adev(connector->dev);
struct amdgpu_display_manager *dm = &adev->dm;
+ /*
+ * Call only if mst_mgr was initialized before since it's not done
+ * for all connector types.
+ */
+ if (aconnector->mst_mgr.dev)
+ drm_dp_mst_topology_mgr_destroy(&aconnector->mst_mgr);
+
#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
--
2.7.4
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