commit: http://blackfin.uclinux.org/git/?p=linux-kernel;a=commitdiff;h=1a44e426a3033db9be15a81dd87c5ff64fb997b1 branch: http://blackfin.uclinux.org/git/?p=linux-kernel;a=shortlog;h=refs/heads/trunk
If param addr is not page aligned, the check in remap_pfn_range() will fail. This patch fix it. Signed-off-by: Bob Liu <[email protected]> --- mm/nommu.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/mm/nommu.c b/mm/nommu.c index 1258176..6de983c 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1844,7 +1844,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, { unsigned long end = addr + PAGE_ALIGN(size); - if (addr != (pfn << PAGE_SHIFT)) + if ((addr & PAGE_MASK) != (pfn << PAGE_SHIFT)) return -EINVAL; if (addr == vma->vm_start && end == vma->vm_end) {
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