[PATCH] (24/42) ne2
DORMANTno replies
From: Stephen Hemminger <hidden>
Date: 2003-11-13 00:44:18
NE48-ne2 from viro * switched ne2 to dynamic allocation * ne2: fixed order of freeing bugs * ne2: fixed resource leaks on failure exits diff -Nru a/drivers/net/Space.c b/drivers/net/Space.c
--- a/drivers/net/Space.c Tue Nov 11 13:52:10 2003
+++ b/drivers/net/Space.c Tue Nov 11 13:52:10 2003@@ -40,7 +40,7 @@ ethernet adaptor have the name "eth[0123...]". */ -extern int ne2_probe(struct net_device *dev); +extern struct net_device *ne2_probe(int unit); extern struct net_device *hp100_probe(int unit); extern struct net_device *ultra_probe(int unit); extern int ultra32_probe(struct net_device *dev);
@@ -176,15 +176,10 @@ {NULL, 0}, }; - -static struct devprobe mca_probes[] __initdata = { +static struct devprobe2 mca_probes[] __initdata = { #ifdef CONFIG_NE2_MCA {ne2_probe, 0}, #endif - {NULL, 0}, -}; - -static struct devprobe2 mca_probes2[] __initdata = { #ifdef CONFIG_ELMC /* 3c523 */ {elmc_probe, 0}, #endif
@@ -201,7 +196,7 @@ * ISA probes that touch addresses < 0x400 (including those that also * look for EISA/PCI/MCA cards in addition to ISA cards). */ -static struct devprobe2 isa_probes2[] __initdata = { +static struct devprobe2 isa_probes[] __initdata = { #ifdef CONFIG_HP100 /* ISA, EISA & PCI */ {hp100_probe, 0}, #endif
@@ -381,8 +376,7 @@ */ if (probe_list(dev, m68k_probes) == 0 || probe_list(dev, mips_probes) == 0 || - probe_list(dev, eisa_probes) == 0 || - probe_list(dev, mca_probes) == 0) + probe_list(dev, eisa_probes) == 0) err = register_netdev(dev); if (err)
@@ -398,8 +392,8 @@ if (base_addr == 1) return; - probe_list2(unit, mca_probes2, base_addr == 0) && - probe_list2(unit, isa_probes2, base_addr == 0) && + probe_list2(unit, mca_probes, base_addr == 0) && + probe_list2(unit, isa_probes, base_addr == 0) && probe_list2(unit, parport_probes, base_addr == 0); }
diff -Nru a/drivers/net/ne2.c b/drivers/net/ne2.c
--- a/drivers/net/ne2.c Tue Nov 11 13:52:10 2003
+++ b/drivers/net/ne2.c Tue Nov 11 13:52:10 2003@@ -242,7 +242,7 @@ * Note that at boot, this probe only picks up one card at a time. */ -int __init ne2_probe(struct net_device *dev) +static int __init do_ne2_probe(struct net_device *dev) { static int current_mca_slot = -1; int i;
@@ -262,16 +262,55 @@ mca_find_unused_adapter(ne2_adapters[i].id, 0); if((current_mca_slot != MCA_NOTFOUND) && !adapter_found) { + int res; mca_set_adapter_name(current_mca_slot, ne2_adapters[i].name); mca_mark_as_used(current_mca_slot); - return ne2_probe1(dev, current_mca_slot); + res = ne2_probe1(dev, current_mca_slot); + if (res) + mca_mark_as_unused(current_mca_slot); + return res; } } return -ENODEV; } +static void cleanup_card(struct net_device *dev) +{ + mca_mark_as_unused(ei_status.priv); + mca_set_adapter_procfn( ei_status.priv, NULL, NULL); + kfree(dev->priv); + free_irq(dev->irq, dev); + release_region(dev->base_addr, NE_IO_EXTENT); +} + +struct net_device * __init ne2_probe(int unit) +{ + struct net_device *dev = alloc_etherdev(0); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + dev->priv = NULL; /* until all 8390-based use alloc_etherdev() */ + + err = do_ne2_probe(dev); + 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); +} static int ne2_procinfo(char *buf, int slot, struct net_device *dev) {
@@ -735,7 +774,7 @@ #ifdef MODULE #define MAX_NE_CARDS 4 /* Max number of NE cards per module */ -static struct net_device dev_ne[MAX_NE_CARDS]; +static struct net_device *dev_ne[MAX_NE_CARDS]; static int io[MAX_NE_CARDS]; static int irq[MAX_NE_CARDS]; static int bad[MAX_NE_CARDS]; /* 0xbad = bad sig or no reset ack */
@@ -754,23 +793,31 @@ int init_module(void) { + struct net_device *dev; int this_dev, found = 0; for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { - struct net_device *dev = &dev_ne[this_dev]; + dev = alloc_etherdev(0); + if (!dev) + break; + dev->priv = NULL; dev->irq = irq[this_dev]; dev->mem_end = bad[this_dev]; dev->base_addr = io[this_dev]; - dev->init = ne2_probe; - if (register_netdev(dev) != 0) { - if (found != 0) return 0; /* Got at least one. */ - - printk(KERN_WARNING "ne2.c: No NE/2 card found.\n"); - return -ENXIO; + if (do_ne2_probe(dev) == 0) { + if (register_netdev(dev) == 0) { + dev_ne[found++] = dev; + continue; + } + cleanup_card(dev); } - found++; + free_netdev(dev); + break; } - return 0; + if (found) + return 0; + printk(KERN_WARNING "ne2.c: No NE/2 card found\n"); + return -ENXIO; } void cleanup_module(void)
@@ -778,14 +825,11 @@ int this_dev; for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { - struct net_device *dev = &dev_ne[this_dev]; - if (dev->priv != NULL) { - mca_mark_as_unused(ei_status.priv); - mca_set_adapter_procfn( ei_status.priv, NULL, NULL); - kfree(dev->priv); - free_irq(dev->irq, dev); - release_region(dev->base_addr, NE_IO_EXTENT); + struct net_device *dev = dev_ne[this_dev]; + if (dev) { unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); } } }