ieee1394: ohci1394: unroll a macro with return

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>

diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c
index 4665a6f..a660222 100644 (file)
--- a/drivers/ieee1394/ohci1394.c
+++ b/drivers/ieee1394/ohci1394.c
@@ -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)