misc: bcm-vk: use list_move_tail instead of list_del/list_add_tail in bcm_vk_msg.c

Using list_move_tail() instead of list_del() + list_add_tail() in bcm_vk_msg.c.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Link: https://lore.kernel.org/r/20210609071430.1337400-1-libaokun1@huawei.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/bcm-vk/bcm_vk_msg.c

@@ -354,8 +354,7 @@ static void bcm_vk_drain_all_pend(struct device *dev,
 	for (num = 0; num < chan->q_nr; num++) {
 		list_for_each_entry_safe(entry, tmp, &chan->pendq[num], node) {
 			if ((!ctx) || (entry->ctx->idx == ctx->idx)) {
-				list_del(&entry->node);
-				list_add_tail(&entry->node, &del_q);
+				list_move_tail(&entry->node, &del_q);
 			}
 		}
 	}