modify 3c589_cs to be SMP safe

1. EL3WINDOW is always 1 when lock is not held.

2. The second argument of el3_interrupt is 'void *dev_id',
not 'struct el3_private *lp'.

Signed-off-by: [e-mail]
Signed-off-by: Jeff Garzik <[e-mail]>

drivers/net/pcmcia/3c589_cs.c

···
 {
     kio_addr_t ioaddr = dev->base_addr;
     struct el3_private *priv = netdev_priv(dev);
+    unsigned long flags;
 
     DEBUG(3, "%s: el3_start_xmit(length = %ld) called, "
 	  "status %4.4x.\n", dev->name, (long)skb->len,
 	  inw(ioaddr + EL3_STATUS));
+
+    spin_lock_irqsave(&priv->lock, flags);    
 
     priv->stats.tx_bytes += skb->len;
 
···
 
     dev_kfree_skb(skb);
     pop_tx_status(dev);
+    spin_unlock_irqrestore(&priv->lock, flags);    
     
     return 0;
 }
···
 
     if (!netif_device_present(dev)) goto reschedule;
 
-    EL3WINDOW(1);
     /* Check for pending interrupt with expired latency timer: with
        this, we can limp along even if the interrupt is blocked */
     if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
 	(inb(ioaddr + EL3_TIMER) == 0xff)) {
 	if (!lp->fast_poll)
 	    printk(KERN_WARNING "%s: interrupt(s) dropped!\n", dev->name);
-	el3_interrupt(dev->irq, lp);
+	el3_interrupt(dev->irq, dev);
 	lp->fast_poll = HZ;
     }
     if (lp->fast_poll) {