From 162875570e65b56a7f4d804fc32aebf7a434cf89 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Fri, 6 Jan 2006 16:57:43 -0800 Subject: [PATCH] sk98lin: error handling on probe The sk98lin driver doesn't do proper error number handling during initialization. Note: -EAGAIN is a bogus return value for hardware errors. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sk98lin/skge.c | 28 +++++++++++++++++----------- 1 file changed, 17 insertions(+), 11 deletions(-) (limited to 'drivers/net/sk98lin') diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c index 9f89c23191d..455417d5fcf 100644 --- a/drivers/net/sk98lin/skge.c +++ b/drivers/net/sk98lin/skge.c @@ -530,7 +530,7 @@ SK_BOOL DualNet; if (SkGeInit(pAC, pAC->IoBase, SK_INIT_DATA) != 0) { printk("HWInit (0) failed.\n"); spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); - return(-EAGAIN); + return -EIO; } SkI2cInit( pAC, pAC->IoBase, SK_INIT_DATA); SkEventInit(pAC, pAC->IoBase, SK_INIT_DATA); @@ -552,7 +552,7 @@ SK_BOOL DualNet; if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) { printk("sk98lin: HWInit (1) failed.\n"); spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); - return(-EAGAIN); + return -EIO; } SkI2cInit( pAC, pAC->IoBase, SK_INIT_IO); SkEventInit(pAC, pAC->IoBase, SK_INIT_IO); @@ -584,20 +584,20 @@ SK_BOOL DualNet; } else { printk(KERN_WARNING "sk98lin: Illegal number of ports: %d\n", pAC->GIni.GIMacsFound); - return -EAGAIN; + return -EIO; } if (Ret) { printk(KERN_WARNING "sk98lin: Requested IRQ %d is busy.\n", dev->irq); - return -EAGAIN; + return Ret; } pAC->AllocFlag |= SK_ALLOC_IRQ; /* Alloc memory for this board (Mem for RxD/TxD) : */ if(!BoardAllocMem(pAC)) { printk("No memory for descriptor rings.\n"); - return(-EAGAIN); + return -ENOMEM; } BoardInitMem(pAC); @@ -613,7 +613,7 @@ SK_BOOL DualNet; DualNet)) { BoardFreeMem(pAC); printk("sk98lin: SkGeInitAssignRamToQueues failed.\n"); - return(-EAGAIN); + return -EIO; } return (0); @@ -4800,8 +4800,10 @@ static int __devinit skge_probe_one(struct pci_dev *pdev, } } - if ((dev = alloc_etherdev(sizeof(DEV_NET))) == NULL) { - printk(KERN_ERR "Unable to allocate etherdev " + error = -ENOMEM; + dev = alloc_etherdev(sizeof(DEV_NET)); + if (!dev) { + printk(KERN_ERR "sk98lin: unable to allocate etherdev " "structure!\n"); goto out_disable_device; } @@ -4809,7 +4811,7 @@ static int __devinit skge_probe_one(struct pci_dev *pdev, pNet = netdev_priv(dev); pNet->pAC = kzalloc(sizeof(SK_AC), GFP_KERNEL); if (!pNet->pAC) { - printk(KERN_ERR "Unable to allocate adapter " + printk(KERN_ERR "sk98lin: unable to allocate adapter " "structure!\n"); goto out_free_netdev; } @@ -4822,6 +4824,7 @@ static int __devinit skge_probe_one(struct pci_dev *pdev, pAC->CheckQueue = SK_FALSE; dev->irq = pdev->irq; + error = SkGeInitPCI(pAC); if (error) { printk(KERN_ERR "sk98lin: PCI setup failed: %i\n", error); @@ -4861,17 +4864,20 @@ static int __devinit skge_probe_one(struct pci_dev *pdev, pAC->Index = boards_found++; - if (SkGeBoardInit(dev, pAC)) + error = SkGeBoardInit(dev, pAC); + if (error) goto out_free_netdev; /* Read Adapter name from VPD */ if (ProductStr(pAC, DeviceStr, sizeof(DeviceStr)) != 0) { + error = -EIO; printk(KERN_ERR "sk98lin: Could not read VPD data.\n"); goto out_free_resources; } /* Register net device */ - if (register_netdev(dev)) { + error = register_netdev(dev); + if (error) { printk(KERN_ERR "sk98lin: Could not register device.\n"); goto out_free_resources; } -- cgit v1.2.3