Messages in this thread Patch in this message | | | From | Bjorn Helgaas <> | Subject | [PATCH 2/7] CCISS: request all PCI resources | Date | Wed, 14 Jun 2006 17:09:30 -0600 |
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We should call pci_request_regions() to claim all resources the device decodes. Previously, we claimed only the I/O port range.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Index: rc5-mm3/drivers/block/cciss.c =================================================================== --- rc5-mm3.orig/drivers/block/cciss.c 2006-06-14 14:37:49.000000000 -0600 +++ rc5-mm3/drivers/block/cciss.c 2006-06-14 14:44:03.000000000 -0600 @@ -2638,16 +2638,6 @@ } #endif /* CCISS_DEBUG */ -static void release_io_mem(ctlr_info_t *c) -{ - /* if IO mem was not protected do nothing */ - if( c->io_mem_addr == 0) - return; - release_region(c->io_mem_addr, c->io_mem_length); - c->io_mem_addr = 0; - c->io_mem_length = 0; -} - static int find_PCI_BAR_index(struct pci_dev *pdev, unsigned long pci_bar_addr) { @@ -2762,36 +2752,18 @@ return err; } + err = pci_request_regions(pdev, "cciss"); + if (err) { + printk(KERN_ERR "cciss: Cannot obtain PCI resources, " + "aborting\n"); + goto err_out_disable_pdev; + } + subsystem_vendor_id = pdev->subsystem_vendor; subsystem_device_id = pdev->subsystem_device; board_id = (((__u32) (subsystem_device_id << 16) & 0xffff0000) | subsystem_vendor_id); - /* search for our IO range so we can protect it */ - for(i=0; i<DEVICE_COUNT_RESOURCE; i++) - { - /* is this an IO range */ - if( pci_resource_flags(pdev, i) & 0x01 ) { - c->io_mem_addr = pci_resource_start(pdev, i); - c->io_mem_length = pci_resource_end(pdev, i) - - pci_resource_start(pdev, i) +1; -#ifdef CCISS_DEBUG - printk("IO value found base_addr[%d] %lx %lx\n", i, - c->io_mem_addr, c->io_mem_length); -#endif /* CCISS_DEBUG */ - /* register the IO range */ - if(!request_region( c->io_mem_addr, - c->io_mem_length, "cciss")) - { - printk(KERN_WARNING "cciss I/O memory range already in use addr=%lx length=%ld\n", - c->io_mem_addr, c->io_mem_length); - c->io_mem_addr= 0; - c->io_mem_length = 0; - } - break; - } - } - #ifdef CCISS_DEBUG printk("command = %x\n", command); printk("irq = %x\n", pdev->irq); @@ -2826,7 +2798,7 @@ if (scratchpad != CCISS_FIRMWARE_READY) { printk(KERN_WARNING "cciss: Board not ready. Timed out.\n"); err = -ENODEV; - goto err_out_disable_pdev; + goto err_out_free_res; } /* get the address index number */ @@ -2842,9 +2814,8 @@ #endif /* CCISS_DEBUG */ if (cfg_base_addr_index == -1) { printk(KERN_WARNING "cciss: Cannot find cfg_base_addr_index\n"); - release_io_mem(c); err = -ENODEV; - goto err_out_disable_pdev; + goto err_out_free_res; } cfg_offset = readl(c->vaddr + SA5_CTMEM_OFFSET); @@ -2872,7 +2843,7 @@ " to access the Smart Array controller %08lx\n", (unsigned long)board_id); err = -ENODEV; - goto err_out_disable_pdev; + goto err_out_free_res; } if ( (readb(&c->cfgtable->Signature[0]) != 'C') || (readb(&c->cfgtable->Signature[1]) != 'I') || @@ -2881,7 +2852,7 @@ { printk("Does not appear to be a valid CISS config table\n"); err = -ENODEV; - goto err_out_disable_pdev; + goto err_out_free_res; } #ifdef CONFIG_X86 @@ -2926,10 +2897,13 @@ printk(KERN_WARNING "cciss: unable to get board into" " simple mode\n"); err = -ENODEV; - goto err_out_disable_pdev; + goto err_out_free_res; } return 0; +err_out_free_res: + pci_release_regions(pdev); + err_out_disable_pdev: pci_disable_device(pdev); return err; @@ -3276,7 +3250,6 @@ clean2: unregister_blkdev(hba[i]->major, hba[i]->devname); clean1: - release_io_mem(hba[i]); hba[i]->busy_initializing = 0; free_hba(i); return(-1); @@ -3322,7 +3295,6 @@ pci_disable_msi(hba[i]->pdev); #endif /* CONFIG_PCI_MSI */ - pci_set_drvdata(pdev, NULL); iounmap(hba[i]->vaddr); cciss_unregister_scsi(i); /* unhook from SCSI subsystem */ unregister_blkdev(hba[i]->major, hba[i]->devname); @@ -3349,7 +3321,9 @@ #ifdef CONFIG_CISS_SCSI_TAPE kfree(hba[i]->scsi_rejects.complete); #endif - release_io_mem(hba[i]); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); free_hba(i); } Index: rc5-mm3/drivers/block/cciss.h =================================================================== --- rc5-mm3.orig/drivers/block/cciss.h 2006-03-19 22:53:29.000000000 -0700 +++ rc5-mm3/drivers/block/cciss.h 2006-06-14 14:45:00.000000000 -0600 @@ -60,8 +60,6 @@ __u32 board_id; void __iomem *vaddr; unsigned long paddr; - unsigned long io_mem_addr; - unsigned long io_mem_length; CfgTable_struct __iomem *cfgtable; int interrupts_enabled; int major; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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