From: Victor Lu <victorchengchi.lu@xxxxxxx>
[why]
An old dc_sink state is causing a memory leak because it is missing a
dc_sink_release before a new dc_sink is assigned back to
aconnector->dc_sink.
[how]
Decrement the dc_sink refcount before reassigning it to a new dc_sink.
Signed-off-by: Victor Lu <victorchengchi.lu@xxxxxxx>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
Acked-by: Anson Jacob <Anson.Jacob@xxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
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 3a44a86f870a..e11139ca41d4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2331,8 +2331,10 @@ void amdgpu_dm_update_connector_after_detect(
* TODO: check if we still need the S3 mode update workaround.
* If yes, put it here.
*/
- if (aconnector->dc_sink)
+ if (aconnector->dc_sink) {
amdgpu_dm_update_freesync_caps(connector, NULL);
+ dc_sink_release(aconnector->dc_sink);
+ }
aconnector->dc_sink = sink;
dc_sink_retain(aconnector->dc_sink);
--
2.25.1
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