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-rw-r--r--arch/ia64/sn/kernel/io_init.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 37e10e010a2f..414cdf2e3c96 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -323,7 +323,7 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
323 struct pci_controller *controller; 323 struct pci_controller *controller;
324 struct pcibus_bussoft *prom_bussoft_ptr; 324 struct pcibus_bussoft *prom_bussoft_ptr;
325 struct hubdev_info *hubdev_info; 325 struct hubdev_info *hubdev_info;
326 void *provider_soft; 326 void *provider_soft = NULL;
327 struct sn_pcibus_provider *provider; 327 struct sn_pcibus_provider *provider;
328 328
329 status = sal_get_pcibus_info((u64) segment, (u64) busnum, 329 status = sal_get_pcibus_info((u64) segment, (u64) busnum,
@@ -339,7 +339,7 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
339 if (bus == NULL) { 339 if (bus == NULL) {
340 bus = pci_scan_bus(busnum, &pci_root_ops, controller); 340 bus = pci_scan_bus(busnum, &pci_root_ops, controller);
341 if (bus == NULL) 341 if (bus == NULL)
342 return; /* error, or bus already scanned */ 342 goto error_return; /* error, or bus already scanned */
343 bus->sysdata = NULL; 343 bus->sysdata = NULL;
344 } 344 }
345 345
@@ -352,28 +352,30 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
352 */ 352 */
353 353
354 if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) 354 if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES)
355 return; /* unsupported asic type */ 355 goto error_return; /* unsupported asic type */
356 356
357 if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB) 357 if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB)
358 goto error_return; /* no further fixup necessary */ 358 goto error_return; /* no further fixup necessary */
359 359
360 provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type]; 360 provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
361 if (provider == NULL) 361 if (provider == NULL)
362 return; /* no provider registerd for this asic */ 362 goto error_return; /* no provider registerd for this asic */
363 363
364 provider_soft = NULL; 364 bus->sysdata = controller;
365 if (provider->bus_fixup) 365 if (provider->bus_fixup)
366 provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, controller); 366 provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, controller);
367 367
368 if (provider_soft == NULL) 368 if (provider_soft == NULL) {
369 return; /* fixup failed or not applicable */ 369 /* fixup failed or not applicable */
370 bus->sysdata = NULL;
371 goto error_return;
372 }
370 373
371 /* 374 /*
372 * Generic bus fixup goes here. Don't reference prom_bussoft_ptr 375 * Generic bus fixup goes here. Don't reference prom_bussoft_ptr
373 * after this point. 376 * after this point.
374 */ 377 */
375 378
376 bus->sysdata = controller;
377 PCI_CONTROLLER(bus)->platform_data = provider_soft; 379 PCI_CONTROLLER(bus)->platform_data = provider_soft;
378 nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base); 380 nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base);
379 cnode = nasid_to_cnodeid(nasid); 381 cnode = nasid_to_cnodeid(nasid);