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pci-v4.16-fixes-2

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Merge tag 'pci-v4.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - Update pci.ids location (documentation only) (Randy Dunlap)

 - Fix a crash when BIOS didn't assign a BAR and we try to enlarge it
   (Christian König)

* tag 'pci-v4.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Allow release of resources that were never assigned
  PCI: Update location of pci.ids file
This commit is contained in:
Linus Torvalds 2018-03-02 17:44:39 -08:00
commit 329ad5e544
2 changed files with 7 additions and 1 deletions
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4
Documentation/PCI/pci.txt
View file

@ -570,7 +570,9 @@ your driver if they're helpful, or just use plain hex constants.
The device IDs are arbitrary hex numbers (vendor controlled) and normally used
only in a single location, the pci_device_id table.
Please DO submit new vendor/device IDs to http://pciids.sourceforge.net/.
Please DO submit new vendor/device IDs to http://pci-ids.ucw.cz/.
There are mirrors of the pci.ids file at http://pciids.sourceforge.net/
and https://github.com/pciutils/pciids.

4
drivers/pci/setup-res.c
View file

@ -401,6 +401,10 @@ void pci_release_resource(struct pci_dev *dev, int resno)
struct resource *res = dev->resource + resno;
pci_info(dev, "BAR %d: releasing %pR\n", resno, res);
if (!res->parent)
return;
release_resource(res);
res->end = resource_size(res) - 1;
res->start = 0;