[PATCH -next v2] drm/nouveau/fifo: use list_move instead of list_del/list_add in base.c

[Baokun Li]

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

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

 drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c 
b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c
index 2ed4ff05d207..1802ac78b78f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c
@@ -79,8 +79,7 @@ nvkm_fifo_chan_inst_locked(struct nvkm_fifo *fifo, u64 inst)
        struct nvkm_fifo_chan *chan;
        list_for_each_entry(chan, &fifo->chan, head) {
                if (chan->inst->addr == inst) {
-                       list_del(&chan->head);
-                       list_add(&chan->head, &fifo->chan);
+                       list_move(&chan->head, &fifo->chan);
                        return chan;
                }
        }
@@ -109,8 +108,7 @@ nvkm_fifo_chan_chid(struct nvkm_fifo *fifo, int chid, 
unsigned long *rflags)
        spin_lock_irqsave(&fifo->lock, flags);
        list_for_each_entry(chan, &fifo->chan, head) {
                if (chan->chid == chid) {
-                       list_del(&chan->head);
-                       list_add(&chan->head, &fifo->chan);
+                       list_move(&chan->head, &fifo->chan);
                        *rflags = flags;
                        return chan;
                }