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SubjectRe: [patch 15/55] PCI: vmd: Create named irq domain
On Tue, 20 Jun 2017, Keith Busch wrote:
> On Tue, Jun 20, 2017 at 01:37:15AM +0200, Thomas Gleixner wrote:
> > static int vmd_enable_domain(struct vmd_dev *vmd)
> > {
> > struct pci_sysdata *sd = &vmd->sysdata;
> > + struct fwnode_handle *fn;
> > struct resource *res;
> > u32 upper_bits;
> > unsigned long flags;
> > @@ -617,8 +618,13 @@ static int vmd_enable_domain(struct vmd_
> >
> > sd->node = pcibus_to_node(vmd->dev->bus);
> >
> > - vmd->irq_domain = pci_msi_create_irq_domain(NULL, &vmd_msi_domain_info,
> > + fn = irq_domain_alloc_named_id_fwnode("VMD-MSI", vmd->sysdata.domain);
> > + if (!fn)
> > + return -ENODEV;
> > +
> > + vmd->irq_domain = pci_msi_create_irq_domain(fn, &vmd_msi_domain_info,
> > x86_vector_domain);
> > + kfree(fn);
>
> If I'm following all this correctly, it looks like we need to use
> irq_domain_free_fwnode with irq_domain_alloc_named_id_fwnode instead of
> freeing 'fn' directly, otherwise we leak 'fwid->name'.

Yes, I'm a moron.

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