[CC Mika and linux-acpi] On Wednesday, December 21, 2016 05:24:55 PM Chen Yu wrote: > 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]> > --- > drivers/base/platform.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/base/platform.c b/drivers/base/platform.c > index c4af003..22a6430 100644 > --- a/drivers/base/platform.c > +++ b/drivers/base/platform.c > @@ -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);
Do we still need the resource number? > ret = -EBUSY; > goto failed; > } > Thanks, Rafael
