resource: allow MMIO exclusivity for device drivers

[pandora-kernel.git] / drivers / pci / pci-sysfs.c

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 5d72866..d5cdccf 100644 (file)
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -74,7 +74,7 @@ static ssize_t local_cpus_show(struct device *dev,
        int len;
 
        mask = pcibus_to_cpumask(to_pci_dev(dev)->bus);
-       len = cpumask_scnprintf(buf, PAGE_SIZE-2, mask);
+       len = cpumask_scnprintf(buf, PAGE_SIZE-2, &mask);
        buf[len++] = '\n';
        buf[len] = '\0';
        return len;
@@ -88,7 +88,7 @@ static ssize_t local_cpulist_show(struct device *dev,
        int len;
 
        mask = pcibus_to_cpumask(to_pci_dev(dev)->bus);
-       len = cpulist_scnprintf(buf, PAGE_SIZE-2, mask);
+       len = cpulist_scnprintf(buf, PAGE_SIZE-2, &mask);
        buf[len++] = '\n';
        buf[len] = '\0';
        return len;
@@ -569,7 +569,7 @@ void pci_remove_legacy_files(struct pci_bus *b)
 
 #ifdef HAVE_PCI_MMAP
 
-static int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vma)
+int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vma)
 {
        unsigned long nr, start, size;
 
@@ -620,6 +620,9 @@ pci_mmap_resource(struct kobject *kobj, struct bin_attribute *attr,
        vma->vm_pgoff += start >> PAGE_SHIFT;
        mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io;
 
+       if (res->flags & IORESOURCE_MEM && iomem_is_exclusive(start))
+               return -EINVAL;
+
        return pci_mmap_page_range(pdev, vma, mmap_type, write_combine);
 }