From: =?UTF-8?q?Ernst=20Sj=C3=B6strand?= <ernstp@gmail.com>
Date: Tue, 7 Nov 2017 21:18:06 +0100
Subject: amdgpu/dc: Fix double unlock in amdgpu_dm_commit_planes
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Git-commit: 53a23207f2a17fd990c85bd84c45d243463e21bb
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Reported by smartch:
amdgpu_dm_commit_planes() error: double unlock 'spin_lock:&crtc->dev->event_lock'
amdgpu_dm_commit_planes() error: double unlock 'irqsave:flags'
The error path doesn't return so we only need a single unlock.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Ernst Sjöstrand <ernstp@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 -
1 file changed, 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3904,7 +3904,6 @@ static void amdgpu_dm_commit_planes(stru
DRM_ERROR("%s: acrtc %d, already busy\n",
__func__,
acrtc_attach->crtc_id);
- spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
/* In commit tail framework this cannot happen */
WARN_ON(1);
}