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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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[netdrvr] ibmlana: modularization cleanup
* move alloc_netdev() call, register_netdev() call, and associated failure cleanup into ibmlana_probe() * move per-net_device cleanup into ibmlana_remove_one() Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Jeff Garzik
David S. Miller
parent
28fc1f5a0c
commit
fbe02d6d87
@ -890,11 +890,14 @@ static void ibmlana_set_multicast_list(struct net_device *dev)
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* hardware check
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* ------------------------------------------------------------------------ */
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static int ibmlana_irq;
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static int ibmlana_io;
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static int startslot; /* counts through slots when probing multiple devices */
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static int ibmlana_probe(struct net_device *dev)
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static int ibmlana_probe(struct net_device **dev_out)
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{
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int slot, z;
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struct net_device *dev;
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int slot, z, rc;
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int base = 0, irq = 0, iobase = 0, memlen = 0;
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ibmlana_priv *priv;
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ibmlana_medium medium;
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@ -904,6 +907,13 @@ static int ibmlana_probe(struct net_device *dev)
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if (MCA_bus == 0)
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return -ENODEV;
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dev = alloc_etherdev(sizeof(ibmlana_priv));
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if (!dev)
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return -ENOMEM;
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dev->irq = ibmlana_irq;
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dev->base_addr = ibmlana_io;
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base = dev->mem_start;
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irq = dev->irq;
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@ -924,8 +934,10 @@ static int ibmlana_probe(struct net_device *dev)
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}
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/* nothing found ? */
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if (slot == -1)
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return (base != 0 || irq != 0) ? -ENXIO : -ENODEV;
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if (slot == -1) {
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rc = (base != 0 || irq != 0) ? -ENXIO : -ENODEV;
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goto err_out;
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}
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/* announce success */
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printk(KERN_INFO "%s: IBM LAN Adapter/A found in slot %d\n", dev->name, slot + 1);
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@ -934,7 +946,8 @@ static int ibmlana_probe(struct net_device *dev)
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if (!request_region(iobase, IBM_LANA_IORANGE, DRV_NAME)) {
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printk(KERN_ERR "%s: cannot allocate I/O range at %#x!\n", DRV_NAME, iobase);
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startslot = slot + 1;
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return -EBUSY;
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rc = -EBUSY;
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goto err_out;
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}
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priv = netdev_priv(dev);
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@ -955,8 +968,8 @@ static int ibmlana_probe(struct net_device *dev)
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if (!priv->base) {
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printk(KERN_ERR "%s: cannot remap memory!\n", DRV_NAME);
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startslot = slot + 1;
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release_region(iobase, IBM_LANA_IORANGE);
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return -EBUSY;
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rc = -EBUSY;
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goto err_out_reg;
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}
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/* make procfs entries */
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@ -996,73 +1009,79 @@ static int ibmlana_probe(struct net_device *dev)
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startslot = slot + 1;
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rc = register_netdev(dev);
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if (rc)
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goto err_out_claimed;
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*dev_out = dev;
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return 0;
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err_out_claimed:
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mca_mark_as_unused(priv->slot);
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mca_set_adapter_name(priv->slot, "");
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mca_set_adapter_procfn(priv->slot, NULL, NULL);
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iounmap(priv->base);
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err_out_reg:
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release_region(iobase, IBM_LANA_IORANGE);
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err_out:
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free_netdev(dev);
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return rc;
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}
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static void ibmlana_remove_one(struct net_device *_dev)
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{
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struct net_device *dev = _dev;
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ibmlana_priv *priv = netdev_priv(dev);
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unregister_netdev(dev);
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/*DeinitBoard(dev); */
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release_region(dev->base_addr, IBM_LANA_IORANGE);
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mca_mark_as_unused(priv->slot);
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mca_set_adapter_name(priv->slot, "");
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mca_set_adapter_procfn(priv->slot, NULL, NULL);
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iounmap(priv->base);
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free_netdev(dev);
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}
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/* ------------------------------------------------------------------------
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* modularization support
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* ------------------------------------------------------------------------ */
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#ifdef MODULE
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#define DEVMAX 5
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static struct net_device *moddevs[DEVMAX];
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static int irq;
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static int io;
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module_param(irq, int, 0);
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module_param(io, int, 0);
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module_param_named(irq, ibmlana_irq, int, 0);
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module_param_named(io, ibmlana_io, int, 0);
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MODULE_PARM_DESC(irq, "IBM LAN/A IRQ number");
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MODULE_PARM_DESC(io, "IBM LAN/A I/O base address");
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MODULE_LICENSE("GPL");
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int init_module(void)
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static int __init ibmlana_init_module(void)
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{
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int z;
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startslot = 0;
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for (z = 0; z < DEVMAX; z++) {
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struct net_device *dev = alloc_etherdev(sizeof(ibmlana_priv));
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if (!dev)
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struct net_device *dev = NULL;
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if (ibmlana_probe(&dev))
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break;
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dev->irq = irq;
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dev->base_addr = io;
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if (ibmlana_probe(dev)) {
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free_netdev(dev);
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break;
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}
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if (register_netdev(dev)) {
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ibmlana_priv *priv = netdev_priv(dev);
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release_region(dev->base_addr, IBM_LANA_IORANGE);
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mca_mark_as_unused(priv->slot);
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mca_set_adapter_name(priv->slot, "");
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mca_set_adapter_procfn(priv->slot, NULL, NULL);
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iounmap(priv->base);
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free_netdev(dev);
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break;
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}
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moddevs[z] = dev;
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}
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return (z > 0) ? 0 : -EIO;
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}
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void cleanup_module(void)
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static void __exit ibmlana_cleanup_module(void)
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{
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int z;
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for (z = 0; z < DEVMAX; z++) {
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struct net_device *dev = moddevs[z];
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if (dev) {
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ibmlana_priv *priv = netdev_priv(dev);
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unregister_netdev(dev);
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/*DeinitBoard(dev); */
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release_region(dev->base_addr, IBM_LANA_IORANGE);
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mca_mark_as_unused(priv->slot);
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mca_set_adapter_name(priv->slot, "");
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mca_set_adapter_procfn(priv->slot, NULL, NULL);
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iounmap(priv->base);
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free_netdev(dev);
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}
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if (dev)
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ibmlana_remove_one(dev);
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}
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}
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#endif /* MODULE */
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module_init(ibmlana_init_module);
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module_exit(ibmlana_cleanup_module);
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