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| author | Ingo Molnar <mingo@elte.hu> | 2009-01-11 03:43:52 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-11 03:43:52 +0100 |
| commit | 99cd7074891f87c49660e3b2880564324a4733ac (patch) | |
| tree | 903d2665bcb445f1f265d1adf7a99f265bcefc15 /drivers/pci/proc.c | |
| parent | trace: clean up funny line breaks in stat_seq_show (diff) | |
| parent | Linux 2.6.29-rc1 (diff) | |
| download | linux-99cd7074891f87c49660e3b2880564324a4733ac.tar.xz linux-99cd7074891f87c49660e3b2880564324a4733ac.zip | |
Merge commit 'v2.6.29-rc1' into tracing/urgent
Diffstat (limited to 'drivers/pci/proc.c')
| -rw-r--r-- | drivers/pci/proc.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index e1098c302c45..593bb844b8db 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -252,11 +252,20 @@ static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma) const struct proc_dir_entry *dp = PDE(inode); struct pci_dev *dev = dp->data; struct pci_filp_private *fpriv = file->private_data; - int ret; + int i, ret; if (!capable(CAP_SYS_RAWIO)) return -EPERM; + /* Make sure the caller is mapping a real resource for this device */ + for (i = 0; i < PCI_ROM_RESOURCE; i++) { + if (pci_mmap_fits(dev, i, vma)) + break; + } + + if (i >= PCI_ROM_RESOURCE) + return -ENODEV; + ret = pci_mmap_page_range(dev, vma, fpriv->mmap_state, fpriv->write_combine); @@ -352,15 +361,16 @@ static int show_device(struct seq_file *m, void *v) dev->vendor, dev->device, dev->irq); - /* Here should be 7 and not PCI_NUM_RESOURCES as we need to preserve compatibility */ - for (i=0; i<7; i++) { + + /* only print standard and ROM resources to preserve compatibility */ + for (i = 0; i <= PCI_ROM_RESOURCE; i++) { resource_size_t start, end; pci_resource_to_user(dev, i, &dev->resource[i], &start, &end); seq_printf(m, "\t%16llx", (unsigned long long)(start | (dev->resource[i].flags & PCI_REGION_FLAG_MASK))); } - for (i=0; i<7; i++) { + for (i = 0; i <= PCI_ROM_RESOURCE; i++) { resource_size_t start, end; pci_resource_to_user(dev, i, &dev->resource[i], &start, &end); seq_printf(m, "\t%16llx", |