[PATCH] (30/42) jazzsonic
DORMANTno replies
From: Stephen Hemminger <hidden>
Date: 2003-11-13 00:45:18
NE55-jazzsonic * switched jazzsonic to dynamic allocation * jazzsonic: 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 14:15:38 2003
+++ b/drivers/net/Space.c Tue Nov 11 14:15:38 2003@@ -70,7 +70,7 @@ extern struct net_device *ni5010_probe(int unit); extern struct net_device *ni52_probe(int unit); extern struct net_device *ni65_probe(int unit); -extern int sonic_probe(struct net_device *); +extern struct net_device *sonic_probe(int unit); extern struct net_device *SK_init(int unit); extern struct net_device *seeq8005_probe(int unit); extern struct net_device *smc_init(int unit);
@@ -335,14 +335,10 @@ {NULL, 0}, }; -static struct devprobe mips_probes[] __initdata = { +static struct devprobe2 mips_probes[] __initdata = { #ifdef CONFIG_MIPS_JAZZ_SONIC {sonic_probe, 0}, #endif - {NULL, 0}, -}; - -static struct devprobe2 mips_probes2[] __initdata = { #ifdef CONFIG_BAGETLANCE /* Lance-based Baget ethernet boards */ {bagetlance_probe, 0}, #endif
@@ -379,8 +375,7 @@ * The arch specific probes are 1st so that any on-board ethernet * will be probed before other ISA/EISA/MCA/PCI bus cards. */ - if (probe_list(dev, m68k_probes) == 0 || - probe_list(dev, mips_probes) == 0) + if (probe_list(dev, m68k_probes) == 0) err = register_netdev(dev); if (err)
@@ -396,7 +391,7 @@ if (base_addr == 1) return; - probe_list2(unit, mips_probes2, base_addr == 0) && + probe_list2(unit, mips_probes, base_addr == 0) && probe_list2(unit, eisa_probes, base_addr == 0) && probe_list2(unit, mca_probes, base_addr == 0) && probe_list2(unit, isa_probes, base_addr == 0) &&
diff -Nru a/drivers/net/jazzsonic.c b/drivers/net/jazzsonic.c
--- a/drivers/net/jazzsonic.c Tue Nov 11 14:15:38 2003
+++ b/drivers/net/jazzsonic.c Tue Nov 11 14:15:38 2003@@ -80,7 +80,6 @@ /* Index to functions, as function prototypes. */ -extern int sonic_probe(struct net_device *dev); static int sonic_probe1(struct net_device *dev, unsigned int base_addr, unsigned int irq);
@@ -89,29 +88,57 @@ * Probe for a SONIC ethernet controller on a Mips Jazz board. * Actually probing is superfluous but we're paranoid. */ -int __init sonic_probe(struct net_device *dev) +struct net_device * __init sonic_probe(int unit) { - unsigned int base_addr = dev ? dev->base_addr : 0; + struct net_device *dev; + struct sonic_local *lp; + unsigned int base_addr; + int err = 0; int i; /* * Don't probe if we're not running on a Jazz board. */ if (mips_machgroup != MACH_GROUP_JAZZ) - return -ENODEV; - if (base_addr >= KSEG0) /* Check a single specified location. */ - return sonic_probe1(dev, base_addr, dev->irq); - else if (base_addr != 0) /* Don't probe at all. */ - return -ENXIO; - - for (i = 0; sonic_portlist[i].port; i++) { - int base_addr = sonic_portlist[i].port; - if (check_region(base_addr, 0x100)) - continue; - if (sonic_probe1(dev, base_addr, sonic_portlist[i].irq) == 0) - return 0; + return ERR_PTR(-ENODEV); + + dev = alloc_etherdev(0); + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + base_addr = dev->base_addr; + + if (base_addr >= KSEG0) { /* Check a single specified location. */ + err = sonic_probe1(dev, base_addr, dev->irq); + } else if (base_addr != 0) { /* Don't probe at all. */ + err = -ENXIO; + } else { + for (i = 0; sonic_portlist[i].port; i++) { + int io = sonic_portlist[i].port; + if (sonic_probe1(dev, io, sonic_portlist[i].irq) == 0) + break; + } + if (!sonic_portlist[i].port) + err = -ENODEV; } - return -ENODEV; + if (err) + goto out; + err = register_netdev(dev); + if (err) + goto out1; + return dev; +out1: + lp = dev->priv; + vdma_free(lp->rba_laddr); + kfree(lp->rba); + vdma_free(lp->cda_laddr); + kfree(lp); + release_region(dev->base_addr, 0x100); +out: + free_netdev(dev); + return ERR_PTR(err); } static int __init sonic_probe1(struct net_device *dev, unsigned int base_addr,
@@ -121,8 +148,11 @@ unsigned int silicon_revision; unsigned int val; struct sonic_local *lp; + int err = -ENODEV; int i; + if (!request_region(base_addr, 0x100, dev->name)) + return -EBUSY; /* * get the Silicon Revision ID. If this is one of the known * one assume that we found a SONIC ethernet controller at
@@ -140,12 +170,9 @@ if (known_revisions[i] == 0xffff) { printk("SONIC ethernet controller not found (0x%4x)\n", silicon_revision); - return -ENODEV; + goto out; } - if (!request_region(base_addr, 0x100, dev->name)) - return -EBUSY; - if (sonic_debug && version_printed++ == 0) printk(version);
@@ -175,6 +202,8 @@ } printk(" IRQ %d\n", irq); + + err = -ENOMEM; /* Initialize the device structure. */ if (dev->priv == NULL) {
@@ -196,7 +225,7 @@ if (lp == NULL) { printk("%s: couldn't allocate memory for descriptors\n", dev->name); - return -ENOMEM; + goto out; } memset(lp, 0, sizeof(struct sonic_local));
@@ -206,7 +235,7 @@ if (lp->cda_laddr == ~0UL) { printk("%s: couldn't get DMA page entry for " "descriptors\n", dev->name); - return -ENOMEM; + goto out1; } lp->tda_laddr = lp->cda_laddr + sizeof (lp->cda);
@@ -219,7 +248,7 @@ if (!lp->rba) { printk("%s: couldn't allocate receive buffers\n", dev->name); - return -ENOMEM; + goto out2; } /* get virtual dma address */
@@ -228,7 +257,7 @@ if (lp->rba_laddr == ~0UL) { printk("%s: couldn't get DMA page entry for receive " "buffers\n",dev->name); - return -ENOMEM; + goto out3; } /* now convert pointer to KSEG1 pointer */
@@ -252,9 +281,16 @@ SONIC_WRITE(SONIC_FAET,0xffff); SONIC_WRITE(SONIC_MPT,0xffff); - /* Fill in the fields of the device structure with ethernet values. */ - ether_setup(dev); return 0; +out3: + kfree(lp->rba); +out2: + vdma_free(lp->cda_laddr); +out1: + kfree(lp); +out: + release_region(base_addr, 0x100); + return err; } /*