From 99f373b03c6c1ce15e5b2b42d3d4212fc8d173a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Mon, 11 Nov 2019 13:52:03 +0100
Subject: drm/ttm: cleanup ttm_buffer_object_transfer
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Git-commit: 832c90df89f21c2ad1b3374a274fbd954bcac2ba
Patch-mainline: v5.7-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

The function is always called with deleted BOs.

While at it cleanup the indentation as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: xinhui pan <xinhui.pan@amd.com>
Link: https://patchwork.freedesktop.org/patch/352743/
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 1fbc36f05d89..c1104c8857b7 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -522,14 +522,9 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
 			       bool interruptible, bool no_wait_gpu,
 			       bool unlock_resv)
 {
-	struct dma_resv *resv;
+	struct dma_resv *resv = &bo->base._resv;
 	int ret;
 
-	if (unlikely(list_empty(&bo->ddestroy)))
-		resv = bo->base.resv;
-	else
-		resv = &bo->base._resv;
-
 	if (dma_resv_test_signaled_rcu(resv, true))
 		ret = 0;
 	else
@@ -542,9 +537,8 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
 			dma_resv_unlock(bo->base.resv);
 		spin_unlock(&ttm_bo_glob.lru_lock);
 
-		lret = dma_resv_wait_timeout_rcu(resv, true,
-							   interruptible,
-							   30 * HZ);
+		lret = dma_resv_wait_timeout_rcu(resv, true, interruptible,
+						 30 * HZ);
 
 		if (lret < 0)
 			return lret;
-- 
2.28.0