blob: b9bc0c14434594d0f8513d0b6aae2f35a4ebb4b1 [file] [log] [blame]
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 25 Apr 2016 15:59:50 -0500
Subject: alpha/PCI: Call iomem_is_exclusive() for IORESOURCE_MEM, but not
IORESOURCE_IO
commit c20e128030caf0537d5e906753eac1c28fefdb75 upstream.
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: 10a0ef39fbd1 ("PCI/alpha: pci sysfs resources")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/alpha/kernel/pci-sysfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -78,10 +78,10 @@ static int pci_mmap_resource(struct 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, &bar, res);