Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits)
  ucc_geth: Fix oops when using fixed-link support
  dm9000: locking bugfix
  net: update dnet.c for bus_id removal
  dnet: DNET should depend on HAS_IOMEM
  dca: add missing copyright/license headers
  nl80211: Check that function pointer != NULL before using it
  sungem: missing net_device_ops
  be2net: fix to restore vlan ids into BE2 during a IF DOWN->UP cycle
  be2net: replenish when posting to rx-queue is starved in out of mem conditions
  bas_gigaset: correctly allocate USB interrupt transfer buffer
  smsc911x: reset last known duplex and carrier on open
  sh_eth: Fix mistake of the address of SH7763
  sh_eth: Change handling of IRQ
  netns: oops in ip[6]_frag_reasm incrementing stats
  net: kfree(napi->skb) => kfree_skb
  net: fix sctp breakage
  ipv6: fix display of local and remote sit endpoints
  net: Document /proc/sys/net/core/netdev_budget
  tulip: fix crash on iface up with shirq debug
  virtio_net: Make virtio_net support carrier detection
  ...

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index bcf92917bbf..254ec62b5f5 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -930,13 +930,15 @@ static irqreturn_t dm9000_interrupt(int irq, void *dev_id)
         struct net_device *dev = dev_id;
         board_info_t *db = netdev_priv(dev);
         int int_status;
+        unsigned long flags;
         u8 reg_save;
 
         dm9000_dbg(db, 3, "entering %s\n", __func__);
 
         /* A real interrupt coming */
 
-        spin_lock(&db->lock);
+        /* holders of db->lock must always block IRQs */
+        spin_lock_irqsave(&db->lock, flags);
 
         /* Save previous register address */
         reg_save = readb(db->io_addr);
@@ -972,7 +974,7 @@ static irqreturn_t dm9000_interrupt(int irq, void *dev_id)
         /* Restore previous register address */
         writeb(reg_save, db->io_addr);
 
-        spin_unlock(&db->lock);
+        spin_unlock_irqrestore(&db->lock, flags);
 
         return IRQ_HANDLED;
 }