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platform: Print the resource range if device failed to claim

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Sometimes we have the following error message:
 platform MSFT0101:00: failed to claim resource 1
 acpi MSFT0101:00: platform device creation failed: -16
But there is not enough information to figure out which resource range
failed to claim.

Thus print the resource range at first-place thus /proc/iomem or
ioports should tell us who already claimed this resource, then
the driver bug or incorrect resource assignment which is running
into this conflict can be diagnosed:
 platform MSFT0101:00: failed to claim resource 1: [mem 0xfed40000-0xfed40fff]
 acpi MSFT0101:00: platform device creation failed: -16

Suggested-by: Len Brown <[email protected]>
Reported-by: Wendy Wang <[email protected]>
Signed-off-by: Chen Yu <[email protected]>
Reviewed-by: Mika Westerberg <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Chen Yu 2016-12-21 17:24:55 +08:00 • committed by Greg Kroah-Hartman
commit 8a18f4284e
1 changed files with 1 additions and 1 deletions
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2
drivers/base/platform.c
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@ -396,7 +396,7 @@ int platform_device_add(struct platform_device *pdev)
}
if (p && insert_resource(p, r)) {
dev_err(&pdev->dev, "failed to claim resource %d\n", i);
dev_err(&pdev->dev, "failed to claim resource %d: %pR\n", i, r);
ret = -EBUSY;
goto failed;
}