diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-11-20 09:03:38 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-20 09:03:38 +0100 |
| commit | 90accd6fabf9b2fa2705945a4c601877a75d43bf (patch) | |
| tree | d393cb54f0228b1313139e4e14adf4f5cf236b59 /arch/sparc64/kernel/pci.c | |
| parent | b43d196c4d3fe46d6dda7c987c47792612b80b1b (diff) | |
| parent | ee2f6cc7f9ea2542ad46070ed62ba7aa04d08871 (diff) | |
Merge branch 'linus' into x86/memory-corruption-check
Diffstat (limited to 'arch/sparc64/kernel/pci.c')
| -rw-r--r-- | arch/sparc64/kernel/pci.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index 242ac1ccae7..bdb7c0a6d83 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -889,6 +889,7 @@ static int __pci_mmap_make_offset(struct pci_dev *pdev, for (i = 0; i <= PCI_ROM_RESOURCE; i++) { struct resource *rp = &pdev->resource[i]; + resource_size_t aligned_end; /* Active? */ if (!rp->flags) @@ -906,8 +907,15 @@ static int __pci_mmap_make_offset(struct pci_dev *pdev, continue; } + /* Align the resource end to the next page address. + * PAGE_SIZE intentionally added instead of (PAGE_SIZE - 1), + * because actually we need the address of the next byte + * after rp->end. + */ + aligned_end = (rp->end + PAGE_SIZE) & PAGE_MASK; + if ((rp->start <= user_paddr) && - (user_paddr + user_size) <= (rp->end + 1UL)) + (user_paddr + user_size) <= aligned_end) break; } |