Commit 5dff80bd authored by Andrey Grodzovsky's avatar Andrey Grodzovsky Committed by Alex Deucher

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 initilized before otherwsie a crash
is seen on driver unload/device unplug.
Reviewed-by: default avatarNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: default avatarAndrey Grodzovsky <andrey.grodzovsky@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 0d427f6c
...@@ -5063,6 +5063,13 @@ static void amdgpu_dm_connector_destroy(struct drm_connector *connector) ...@@ -5063,6 +5063,13 @@ static void amdgpu_dm_connector_destroy(struct drm_connector *connector)
struct amdgpu_device *adev = drm_to_adev(connector->dev); struct amdgpu_device *adev = drm_to_adev(connector->dev);
struct amdgpu_display_manager *dm = &adev->dm; struct amdgpu_display_manager *dm = &adev->dm;
/*
* Call only if mst_mgr was iniitalized 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) ||\ #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
......
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