[PATCH -next v2] drm/ttm: use list_move instead of list_del/list_add in ttm_execbuf_util.c

[Baokun Li]

Using list_move() instead of list_del() + list_add() in ttm_execbuf_util.c.

Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Baokun Li <libaok...@huawei.com>
---
V1->V2:
        CC mailist

 drivers/gpu/drm/ttm/ttm_execbuf_util.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c 
b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
index 071c48d672c6..c50943888d04 100644
--- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c
+++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
@@ -95,8 +95,7 @@ int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
                if (ret == -EALREADY && dups) {
                        struct ttm_validate_buffer *safe = entry;
                        entry = list_prev_entry(entry, head);
-                       list_del(&safe->head);
-                       list_add(&safe->head, dups);
+                       list_move(&safe->head, dups);
                        continue;
                }
 
@@ -135,8 +134,7 @@ int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
                /* move this item to the front of the list,
                 * forces correct iteration of the loop without keeping track
                 */
-               list_del(&entry->head);
-               list_add(&entry->head, list);
+               list_move(&entry->head, list);
        }
 
        return 0;