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ieee1394: ohci1394: unroll a macro with return

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We don't want to hide something like return in a preprocessor macro.
Unroll the macro and use a goto, which also reduces the size of
ohci1394.ko.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Stefan Richter 2008-03-24 20:49:01 +01:00
parent e351c4d069
commit d09c680383
1 changed files with 54 additions and 38 deletions
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92
drivers/ieee1394/ohci1394.c
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@ -2984,13 +2984,6 @@ static struct hpsb_host_driver ohci1394_driver = {
* PCI Driver Interface functions *
***********************************/
#define FAIL(err, fmt, args...) \
do { \
PRINT_G(KERN_ERR, fmt , ## args); \
ohci1394_pci_remove(dev); \
return err; \
} while (0)
#ifdef CONFIG_PPC_PMAC
static void ohci1394_pmac_on(struct pci_dev *dev)
{
@ -3026,15 +3019,21 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
struct hpsb_host *host;
struct ti_ohci *ohci; /* shortcut to currently handled device */
resource_size_t ohci_base;
int err = -ENOMEM;
ohci1394_pmac_on(dev);
if (pci_enable_device(dev))
FAIL(-ENXIO, "Failed to enable OHCI hardware");
if (pci_enable_device(dev)) {
PRINT_G(KERN_ERR, "Failed to enable OHCI hardware");
err = -ENXIO;
goto err;
}
pci_set_master(dev);
host = hpsb_alloc_host(&ohci1394_driver, sizeof(struct ti_ohci), &dev->dev);
if (!host) FAIL(-ENOMEM, "Failed to allocate host structure");
if (!host) {
PRINT_G(KERN_ERR, "Failed to allocate host structure");
goto err;
}
ohci = host->hostdata;
ohci->dev = dev;
ohci->host = host;
@ -3083,15 +3082,20 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
(unsigned long long)pci_resource_len(dev, 0));
if (!request_mem_region(ohci_base, OHCI1394_REGISTER_SIZE,
OHCI1394_DRIVER_NAME))
FAIL(-ENOMEM, "MMIO resource (0x%llx - 0x%llx) unavailable",
OHCI1394_DRIVER_NAME)) {
PRINT_G(KERN_ERR, "MMIO resource (0x%llx - 0x%llx) unavailable",
(unsigned long long)ohci_base,
(unsigned long long)ohci_base + OHCI1394_REGISTER_SIZE);
goto err;
}
ohci->init_state = OHCI_INIT_HAVE_MEM_REGION;
ohci->registers = ioremap(ohci_base, OHCI1394_REGISTER_SIZE);
if (ohci->registers == NULL)
FAIL(-ENXIO, "Failed to remap registers - card not accessible");
if (ohci->registers == NULL) {
PRINT_G(KERN_ERR, "Failed to remap registers");
err = -ENXIO;
goto err;
}
ohci->init_state = OHCI_INIT_HAVE_IOMAPPING;
DBGMSG("Remapped memory spaces reg 0x%p", ohci->registers);
@ -3099,16 +3103,20 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
ohci->csr_config_rom_cpu =
pci_alloc_consistent(ohci->dev, OHCI_CONFIG_ROM_LEN,
&ohci->csr_config_rom_bus);
if (ohci->csr_config_rom_cpu == NULL)
FAIL(-ENOMEM, "Failed to allocate buffer config rom");
if (ohci->csr_config_rom_cpu == NULL) {
PRINT_G(KERN_ERR, "Failed to allocate buffer config rom");
goto err;
}
ohci->init_state = OHCI_INIT_HAVE_CONFIG_ROM_BUFFER;
/* self-id dma buffer allocation */
ohci->selfid_buf_cpu =
pci_alloc_consistent(ohci->dev, OHCI1394_SI_DMA_BUF_SIZE,
&ohci->selfid_buf_bus);
if (ohci->selfid_buf_cpu == NULL)
FAIL(-ENOMEM, "Failed to allocate DMA buffer for self-id packets");
if (ohci->selfid_buf_cpu == NULL) {
PRINT_G(KERN_ERR, "Failed to allocate self-ID buffer");
goto err;
}
ohci->init_state = OHCI_INIT_HAVE_SELFID_BUFFER;
if ((unsigned long)ohci->selfid_buf_cpu & 0x1fff)
@ -3124,28 +3132,32 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
if (alloc_dma_rcv_ctx(ohci, &ohci->ar_req_context,
DMA_CTX_ASYNC_REQ, 0, AR_REQ_NUM_DESC,
AR_REQ_BUF_SIZE, AR_REQ_SPLIT_BUF_SIZE,
OHCI1394_AsReqRcvContextBase) < 0)
FAIL(-ENOMEM, "Failed to allocate AR Req context");
OHCI1394_AsReqRcvContextBase) < 0) {
PRINT_G(KERN_ERR, "Failed to allocate AR Req context");
goto err;
}
/* AR DMA response context allocation */
if (alloc_dma_rcv_ctx(ohci, &ohci->ar_resp_context,
DMA_CTX_ASYNC_RESP, 0, AR_RESP_NUM_DESC,
AR_RESP_BUF_SIZE, AR_RESP_SPLIT_BUF_SIZE,
OHCI1394_AsRspRcvContextBase) < 0)
FAIL(-ENOMEM, "Failed to allocate AR Resp context");
OHCI1394_AsRspRcvContextBase) < 0) {
PRINT_G(KERN_ERR, "Failed to allocate AR Resp context");
goto err;
}
/* AT DMA request context */
if (alloc_dma_trm_ctx(ohci, &ohci->at_req_context,
DMA_CTX_ASYNC_REQ, 0, AT_REQ_NUM_DESC,
OHCI1394_AsReqTrContextBase) < 0)
FAIL(-ENOMEM, "Failed to allocate AT Req context");
OHCI1394_AsReqTrContextBase) < 0) {
PRINT_G(KERN_ERR, "Failed to allocate AT Req context");
goto err;
}
/* AT DMA response context */
if (alloc_dma_trm_ctx(ohci, &ohci->at_resp_context,
DMA_CTX_ASYNC_RESP, 1, AT_RESP_NUM_DESC,
OHCI1394_AsRspTrContextBase) < 0)
FAIL(-ENOMEM, "Failed to allocate AT Resp context");
OHCI1394_AsRspTrContextBase) < 0) {
PRINT_G(KERN_ERR, "Failed to allocate AT Resp context");
goto err;
}
/* Start off with a soft reset, to clear everything to a sane
* state. */
ohci_soft_reset(ohci);
@ -3188,9 +3200,10 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
* by that point.
*/
if (request_irq(dev->irq, ohci_irq_handler, IRQF_SHARED,
OHCI1394_DRIVER_NAME, ohci))
FAIL(-ENOMEM, "Failed to allocate shared interrupt %d", dev->irq);
OHCI1394_DRIVER_NAME, ohci)) {
PRINT_G(KERN_ERR, "Failed to allocate interrupt %d", dev->irq);
goto err;
}
ohci->init_state = OHCI_INIT_HAVE_IRQ;
ohci_initialize(ohci);
@ -3210,13 +3223,16 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
host->middle_addr_space = OHCI1394_MIDDLE_ADDRESS_SPACE;
/* Tell the highlevel this host is ready */
if (hpsb_add_host(host))
FAIL(-ENOMEM, "Failed to register host with highlevel");
if (hpsb_add_host(host)) {
PRINT_G(KERN_ERR, "Failed to register host with highlevel");
goto err;
}
ohci->init_state = OHCI_INIT_DONE;
return 0;
#undef FAIL
err:
ohci1394_pci_remove(dev);
return err;
}
static void ohci1394_pci_remove(struct pci_dev *dev)