Re: [PATCH 1/2] PCI/VMD: Detach resources after stopping root bus

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On Tue, Sep 04, 2018 at 07:09:50PM -0600, Jon Derrick wrote:
> Fixes the ugly warning:
> [  181.940162] Trying to free nonexistent resource <e5a10000-e5a13fff>

It would be good to explain why that warning triggers and why this
patch fixes it.

Lorenzo

> Signed-off-by: Jon Derrick <jonathan.derrick@xxxxxxxxx>
> ---
>  drivers/pci/controller/vmd.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
> index fd2dbd7..46ed80f 100644
> --- a/drivers/pci/controller/vmd.c
> +++ b/drivers/pci/controller/vmd.c
> @@ -813,12 +813,12 @@ static void vmd_remove(struct pci_dev *dev)
>  {
>  	struct vmd_dev *vmd = pci_get_drvdata(dev);
>  
> -	vmd_detach_resources(vmd);
>  	sysfs_remove_link(&vmd->dev->dev.kobj, "domain");
>  	pci_stop_root_bus(vmd->bus);
>  	pci_remove_root_bus(vmd->bus);
>  	vmd_cleanup_srcu(vmd);
>  	vmd_teardown_dma_ops(vmd);
> +	vmd_detach_resources(vmd);
>  	irq_domain_remove(vmd->irq_domain);
>  }
>  
> -- 
> 1.8.3.1
> 



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