On Tue, 2007-01-02 at 11:58 +0000, Alan wrote:

...

> 
> I'm sending this now rather than after running full test suites so that
> it can get the maximal testing in a short time. I'll be running tests on
> this after lunch. 
> 
> Signed-off-by: Alan Cox <[EMAIL PROTECTED]>
> 
> --- linux.vanilla-2.6.20-rc3/drivers/ata/libata-sff.c 2007-01-01 
> 21:43:27.000000000 +0000
> +++ linux-2.6.20-rc3/drivers/ata/libata-sff.c 2007-01-02 11:15:53.000000000 
> +0000
> @@ -1027,13 +1027,15 @@
>  #endif
>       }
>  
> -     rc = pci_request_regions(pdev, DRV_NAME);
> -     if (rc) {
> -             disable_dev_on_err = 0;
> -             goto err_out;
> -     }
> -
> -     if (legacy_mode) {
> +     if (!legacy_mode) {
> +             rc = pci_request_regions(pdev, DRV_NAME);
> +             if (rc) {
> +                     disable_dev_on_err = 0;
> +                     goto err_out;
> +             }
> +     } else {
> +             /* Deal with combined mode hack. This side of the logic all
> +                goes away once the combined mode hack is killed in 2.6.21 */
>               if (!request_region(ATA_PRIMARY_CMD, 8, "libata")) {
>                       struct resource *conflict, res;
>                       res.start = ATA_PRIMARY_CMD;
> @@ -1071,6 +1073,13 @@
>                       }
>               } else
>                       legacy_mode |= ATA_PORT_SECONDARY;
> +
> +             if (legacy_mode & ATA_PORT_PRIMARY)
> +                     pci_request_region(pdev, 1, DRV_NAME);
> +             if (legacy_mode & ATA_PORT_SECONDARY)
> +                     pci_request_region(pdev, 3, DRV_NAME);
> +             /* If there is a DMA resource, allocate it */
> +             pci_request_region(pdev, 4, DRV_NAME);
>       }
>  
>       /* we have legacy mode, but all ports are unavailable */
> @@ -1114,11 +1123,20 @@
>  err_out_ent:
>       kfree(probe_ent);
>  err_out_regions:
> -     if (legacy_mode & ATA_PORT_PRIMARY)
> -             release_region(ATA_PRIMARY_CMD, 8);
> -     if (legacy_mode & ATA_PORT_SECONDARY)
> -             release_region(ATA_SECONDARY_CMD, 8);
> -     pci_release_regions(pdev);
> +     /* All this conditional stuff is needed for the combined mode hack
> +        until 2.6.21 when it can go */
> +     if (legacy_mode) {
> +             pci_release_region(pdev, 4);
> +             if (legacy_mode & ATA_PORT_PRIMARY) {
> +                     release_region(ATA_PRIMARY_CMD, 8);
> +                     pci_release_region(pdev, 1);
> +             }
> +             if (legacy_mode & ATA_PORT_SECONDARY) {
> +                     release_region(ATA_SECONDARY_CMD, 8);
> +                     pci_release_region(pdev, 3);
> +             }
> +     } else
> +             pci_release_regions(pdev);
>  err_out:
>       if (disable_dev_on_err)
>               pci_disable_device(pdev);

This patch works for me too.

Steve.


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