ctcm_fsms: Convert skb->user accesses to refcount_t

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c
index e9847ce3860d81d51d6e8f26f1bb67220cd68783..570ae3b7adf678e524c0b29c80cc909825f69e8b 100644 (file)
--- a/drivers/s390/net/ctcm_fsms.c
+++ b/drivers/s390/net/ctcm_fsms.c
@@ -217,7 +217,7 @@ void ctcm_purge_skb_queue(struct sk_buff_head *q)
        CTCM_DBF_TEXT(TRACE, CTC_DBF_DEBUG, __func__);
 
        while ((skb = skb_dequeue(q))) {
-               atomic_dec(&skb->users);
+               refcount_dec(&skb->users);
                dev_kfree_skb_any(skb);
        }
 }
@@ -271,7 +271,7 @@ static void chx_txdone(fsm_instance *fi, int event, void *arg)
                        priv->stats.tx_bytes += 2;
                        first = 0;
                }
-               atomic_dec(&skb->users);
+               refcount_dec(&skb->users);
                dev_kfree_skb_irq(skb);
        }
        spin_lock(&ch->collect_lock);
@@ -297,7 +297,7 @@ static void chx_txdone(fsm_instance *fi, int event, void *arg)
                                skb_put(ch->trans_skb, skb->len), skb->len);
                        priv->stats.tx_packets++;
                        priv->stats.tx_bytes += skb->len - LL_HEADER_LENGTH;
-                       atomic_dec(&skb->users);
+                       refcount_dec(&skb->users);
                        dev_kfree_skb_irq(skb);
                        i++;
                }
@@ -1248,7 +1248,7 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg)
                        priv->stats.tx_bytes += 2;
                        first = 0;
                }
-               atomic_dec(&skb->users);
+               refcount_dec(&skb->users);
                dev_kfree_skb_irq(skb);
        }
        spin_lock(&ch->collect_lock);
@@ -1298,7 +1298,7 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg)
                data_space -= skb->len;
                priv->stats.tx_packets++;
                priv->stats.tx_bytes += skb->len;
-               atomic_dec(&skb->users);
+               refcount_dec(&skb->users);
                dev_kfree_skb_any(skb);
                peekskb = skb_peek(&ch->collect_queue);
                if (peekskb->len > data_space)
@@ -1795,7 +1795,7 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg)
                fsm_event(grp->fsm, MPCG_EVENT_INOP, dev);
                                goto done;
        } else {
-               atomic_inc(&skb->users);
+               refcount_inc(&skb->users);
                skb_queue_tail(&wch->io_queue, skb);
        }