IPoIB/cm: Fix racy use of receive WR/SGL in ipoib_cm_post_receive_nonsrq()

[linux-2.6-omap-h63xx.git] / drivers / net / dm9000.c

diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index 7c49f336b440dee2a2cededc42bb124c9928ebb8..864295e081b6756ae5ab5dec094db909235a5ae1 100644 (file)
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -117,6 +117,9 @@ typedef struct board_info {
 
        struct mutex     addr_lock;     /* phy and eeprom access lock */
 
+       struct delayed_work phy_poll;
+       struct net_device  *ndev;
+
        spinlock_t lock;
 
        struct mii_if_info mii;
@@ -297,6 +300,10 @@ static void dm9000_set_io(struct board_info *db, int byte_width)
        }
 }
 
+static void dm9000_schedule_poll(board_info_t *db)
+{
+       schedule_delayed_work(&db->phy_poll, HZ * 2);
+}
 
 /* Our watchdog timed out. Called by the networking layer */
 static void dm9000_timeout(struct net_device *dev)
@@ -465,6 +472,17 @@ static const struct ethtool_ops dm9000_ethtool_ops = {
        .set_eeprom             = dm9000_set_eeprom,
 };
 
+static void
+dm9000_poll_work(struct work_struct *w)
+{
+       struct delayed_work *dw = container_of(w, struct delayed_work, work);
+       board_info_t *db = container_of(dw, board_info_t, phy_poll);
+
+       mii_check_media(&db->mii, netif_msg_link(db), 0);
+       
+       if (netif_running(db->ndev))
+               dm9000_schedule_poll(db);
+}
 
 /* dm9000_release_board
  *
@@ -532,10 +550,14 @@ dm9000_probe(struct platform_device *pdev)
        memset(db, 0, sizeof (*db));
 
        db->dev = &pdev->dev;
+       db->ndev = ndev;
 
        spin_lock_init(&db->lock);
        mutex_init(&db->addr_lock);
 
+       INIT_DELAYED_WORK(&db->phy_poll, dm9000_poll_work);
+
+
        if (pdev->num_resources < 2) {
                ret = -ENODEV;
                goto out;
@@ -761,6 +783,8 @@ dm9000_open(struct net_device *dev)
 
        mii_check_media(&db->mii, netif_msg_link(db), 1);
        netif_start_queue(dev);
+       
+       dm9000_schedule_poll(db);
 
        return 0;
 }
@@ -879,6 +903,8 @@ dm9000_stop(struct net_device *ndev)
        if (netif_msg_ifdown(db))
                dev_dbg(db->dev, "shutting down %s\n", ndev->name);
 
+       cancel_delayed_work_sync(&db->phy_poll);
+
        netif_stop_queue(ndev);
        netif_carrier_off(ndev);