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From c8a7ce3772f8db5fea81d6d4ee46d685d926a405 Mon Sep 17 00:00:00 2001
From: Monk Liu <Monk.Liu@amd.com>
Date: Tue, 11 Apr 2017 14:07:11 +0800
Subject: [PATCH 0796/4131] drm/amdgpu:fix sem_get_fence race issue
Change-Id: I7dddc6aac80fa9867a0ea62b0dbb3cb4ee439b6c
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c
index 8789a4e..6d60e7b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c
@@ -346,9 +346,7 @@ static struct dma_fence *amdgpu_sem_get_fence(struct amdgpu_fpriv *fpriv,
return NULL;
}
/* get the last fence of this entity */
- fence = amdgpu_ctx_get_fence(ctx, out_ring,
- in->seq ? in->seq :
- ctx->rings[out_ring->idx].sequence - 1);
+ fence = amdgpu_ctx_get_fence(ctx, out_ring, in->seq);
amdgpu_ctx_put(ctx);
return fence;
--
2.7.4
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