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authorLeo (Sunpeng) Li <sunpeng.li@amd.com>2018-05-16 10:31:30 -0400
committerAlex Deucher <alexander.deucher@amd.com>2018-05-29 13:27:32 -0500
commitdf099b9b60c6c378b1cd2024d1a21a87459b6614 (patch)
tree3feb6a82f206a21f1615bc95a0795971610a9f11
parentaa6d4a59d686d3172012c19874add120e02c113f (diff)
drm/amd/display: Destroy connector state on reset
When a DRM mode reset is called on resume, the connector state's destructor is not called. This leaves a dangling reference on the CRTC commit object, which was obtained by the connector state during commit setup. Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c6
1 files changed, 4 insertions, 2 deletions
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 e2bf4fee4eb2..d913c0a029f2 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2709,6 +2709,9 @@ void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector)
struct dm_connector_state *state =
to_dm_connector_state(connector->state);
+ if (connector->state)
+ __drm_atomic_helper_connector_destroy_state(connector->state);
+
kfree(state);
state = kzalloc(sizeof(*state), GFP_KERNEL);
@@ -2719,8 +2722,7 @@ void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector)
state->underscan_hborder = 0;
state->underscan_vborder = 0;
- connector->state = &state->base;
- connector->state->connector = connector;
+ __drm_atomic_helper_connector_reset(connector, &state->base);
}
}