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alpha/PCI: Call iomem_is_exclusive() for IORESOURCE_MEM, but not IORESOURCE_IO

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The alpha pci_mmap_resource() is used for both IORESOURCE_MEM and
IORESOURCE_IO resources, but iomem_is_exclusive() is only applicable for
IORESOURCE_MEM.

Call iomem_is_exclusive() only for IORESOURCE_MEM resources, and do it
earlier to match the generic version of pci_mmap_resource().

Fixes: 10a0ef39fb ("PCI/alpha: pci sysfs resources")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
This commit is contained in:
Bjorn Helgaas 2016-04-25 15:59:50 -05:00
parent ca620723d4
commit c20e128030
1 changed files with 2 additions and 2 deletions
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4
arch/alpha/kernel/pci-sysfs.c
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@ -77,10 +77,10 @@ static int pci_mmap_resource(struct kobject *kobj,
if (i >= PCI_ROM_RESOURCE)
return -ENODEV;
if (!__pci_mmap_fits(pdev, i, vma, sparse))
if (res->flags & IORESOURCE_MEM && iomem_is_exclusive(res->start))
return -EINVAL;
if (iomem_is_exclusive(res->start))
if (!__pci_mmap_fits(pdev, i, vma, sparse))
return -EINVAL;
pcibios_resource_to_bus(pdev->bus, &bar, res);