[PATCH] (2/7) ni65 dynamic allocation

[Stephen Hemminger <shemminger@xxxxxxxx>]

Originally from Al Viro's NE14-ni65 patch
        * switched ni65 to dynamic allocation
        * ni65: fixed ->irq and ->dma clobbering on autoprob

diff -Nru a/drivers/net/Space.c b/drivers/net/Space.c
--- a/drivers/net/Space.c       Tue Sep 23 12:58:33 2003
+++ b/drivers/net/Space.c       Tue Sep 23 12:58:33 2003
@@ -71,7 +71,7 @@
 extern int e2100_probe(struct net_device *);
 extern int ni5010_probe(struct net_device *);
 extern int ni52_probe(struct net_device *);
-extern int ni65_probe(struct net_device *);
+extern struct net_device *ni65_probe(int unit);
 extern int sonic_probe(struct net_device *);
 extern int SK_init(struct net_device *);
 extern int seeq8005_probe(struct net_device *);
@@ -290,6 +290,10 @@
 #ifdef CONFIG_NI52
        {ni52_probe, 0},
 #endif
+       {NULL, 0},
+};
+
+static struct devprobe2 isa_probes2[] __initdata = {
 #ifdef CONFIG_NI65
        {ni65_probe, 0},
 #endif
@@ -403,6 +407,7 @@
        if (base_addr == 1)
                return;
 
+       probe_list2(unit, isa_probes2, base_addr == 0) &&
        probe_list2(unit, parport_probes, base_addr == 0);
 }
 
diff -Nru a/drivers/net/ni65.c b/drivers/net/ni65.c
--- a/drivers/net/ni65.c        Tue Sep 23 12:58:33 2003
+++ b/drivers/net/ni65.c        Tue Sep 23 12:58:33 2003
@@ -343,29 +343,64 @@
        return 0;
 }
 
+static void cleanup_card(struct net_device *dev)
+{
+       struct priv *p = (struct priv *) dev->priv;
+       disable_dma(dev->dma);
+       free_dma(dev->dma);
+       release_region(dev->base_addr, cards[p->cardno].total_size);
+       ni65_free_buffer(p);
+}
+
+/* set: io,irq,dma or set it when calling insmod */
+static int irq;
+static int io;
+static int dma;
+
 /*
  * Probe The Card (not the lance-chip)
  */
-#ifdef MODULE
-static
-#endif
-int __init ni65_probe(struct net_device *dev)
+struct net_device * __init ni65_probe(int unit)
 {
-       int *port;
+       struct net_device *dev = alloc_etherdev(0);
        static int ports[] = {0x360,0x300,0x320,0x340, 0};
+       int *port;
+       int err = 0;
 
-       if (dev->base_addr > 0x1ff)          /* Check a single specified 
location. */
-                return ni65_probe1(dev, dev->base_addr);
-       else if (dev->base_addr > 0)         /* Don't probe at all. */
-                return -ENXIO;
+       if (!dev)
+               return ERR_PTR(-ENOMEM);
 
-       for (port = ports; *port; port++)
-       {
-               if (ni65_probe1(dev, *port) == 0)
-                        return 0;
-       }
-
-       return -ENODEV;
+       if (unit >= 0) {
+               sprintf(dev->name, "eth%d", unit);
+               netdev_boot_setup_check(dev);
+               irq = dev->irq;
+               dma = dev->dma;
+       } else {
+               dev->base_addr = io;
+       }
+
+       if (dev->base_addr > 0x1ff) { /* Check a single specified location. */
+               err = ni65_probe1(dev, dev->base_addr);
+       } else if (dev->base_addr > 0) { /* Don't probe at all. */
+               err = -ENXIO;
+       } else {
+               for (port = ports; *port && ni65_probe1(dev, *port); port++)
+                       ;
+               if (!*port)
+                       err = -ENODEV;
+       }
+       if (err)
+               goto out;
+
+       err = register_netdev(dev);
+       if (err)
+               goto out1;
+       return dev;
+out1:
+       cleanup_card(dev);
+out:
+       free_netdev(dev);
+       return ERR_PTR(err);
 }
 
 /*
@@ -377,6 +412,9 @@
        struct priv *p;
        unsigned long flags;
 
+       dev->irq = irq;
+       dev->dma = dma;
+
        for(i=0;i<NUM_CARDS;i++) {
                if(!request_region(ioaddr, cards[i].total_size, 
cards[i].cardname))
                        continue;
@@ -521,9 +559,6 @@
        dev->watchdog_timeo     = HZ/2;
        dev->get_stats          = ni65_get_stats;
        dev->set_multicast_list = set_multicast_list;
-
-       ether_setup(dev);
-
        return 0; /* everything is OK */
 }
 
@@ -1213,12 +1248,7 @@
 }
 
 #ifdef MODULE
-static struct net_device dev_ni65 = { .base_addr = 0x360, .irq = 9, .init = 
ni65_probe };
-
-/* set: io,irq,dma or set it when calling insmod */
-static int irq;
-static int io;
-static int dma;
+static struct net_device *dev_ni65;
 
 MODULE_PARM(irq, "i");
 MODULE_PARM(io, "i");
@@ -1229,26 +1259,15 @@
 
 int init_module(void)
 {
-       dev_ni65.irq = irq;
-       dev_ni65.dma = dma;
-       dev_ni65.base_addr = io;
-       if (register_netdev(&dev_ni65) != 0)
-               return -EIO;
-       return 0;
+       dev_ni65 = ni65_probe(-1);
+       return IS_ERR(dev_ni65) ? PTR_ERR(dev_ni65) : 0;
 }
 
 void cleanup_module(void)
 {
-       struct priv *p;
-       p = (struct priv *) dev_ni65.priv;
-       if(!p)
-               BUG();
-       disable_dma(dev_ni65.dma);
-       free_dma(dev_ni65.dma);
-       unregister_netdev(&dev_ni65);
-       release_region(dev_ni65.base_addr,cards[p->cardno].total_size);
-       ni65_free_buffer(p);
-       dev_ni65.priv = NULL;
+       unregister_netdev(dev_ni65);
+       cleanup_card(dev_ni65);
+       free_netdev(dev_ni65);
 }
 #endif /* MODULE */