X-Git-Url: http://nv-tegra.nvidia.com/gitweb/?p=linux-2.6.git;a=blobdiff_plain;f=mm%2Fnommu.c;h=5c5c2d4b1807d4677765cac99f39c2af646c097d;hp=54ae707bdae8a0ac76783026d88a190803382eb1;hb=8209f53d79444747782a28520187abaf689761f2;hpb=eac1b5e57d7abc836e78fd3fbcf77dbeed01edc9

diff --git a/mm/nommu.c b/mm/nommu.c
index 54ae707..5c5c2d4 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1812,10 +1812,13 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
 	return NULL;
 }
 
-int remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
-		unsigned long to, unsigned long size, pgprot_t prot)
+int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
+		unsigned long pfn, unsigned long size, pgprot_t prot)
 {
-	vma->vm_start = vma->vm_pgoff << PAGE_SHIFT;
+	if (addr != (pfn << PAGE_SHIFT))
+		return -EINVAL;
+
+	vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
 	return 0;
 }
 EXPORT_SYMBOL(remap_pfn_range);