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From 8f77382a53a338faf0283246148303dbaf028322 Mon Sep 17 00:00:00 2001
From: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Date: Thu, 13 Jul 2017 10:56:48 -0400
Subject: [PATCH 0618/4131] drm/amd/display: Release cached atomic state in S3.
Fixes memory leak.
Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++++
1 file changed, 4 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 b6a04ad..8377575 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -508,6 +508,7 @@ static int dm_suspend(void *handle)
amdgpu_dm_irq_suspend(adev);
+ WARN_ON(adev->dm.cached_state);
adev->dm.cached_state = drm_atomic_helper_suspend(adev->ddev);
dc_set_power_state(
@@ -607,6 +608,9 @@ int amdgpu_dm_display_resume(struct amdgpu_device *adev )
ret = drm_atomic_helper_resume(ddev, adev->dm.cached_state);
+ drm_atomic_state_put(adev->dm.cached_state);
+ adev->dm.cached_state = NULL;
+
amdgpu_dm_irq_resume_late(adev);
return ret;
--
2.7.4
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