iommu/dma-iommu.c: Convert to use vm_insert_range

Convert to use vm_insert_range() to map range of kernel memory to user vma.

Signed-off-by Souptick Joarder <[email protected]>

---
 drivers/iommu/dma-iommu.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

drivers/iommu/dma-iommu.c +1 -12

index d19f3d6..bdf14b87 100644
@@ -620,17 +620,7 @@ struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
 
 int iommu_dma_mmap(struct page **pages, size_t size, struct vm_area_struct *vma)
 {
-       unsigned long uaddr = vma->vm_start;
-       unsigned int i, count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-       int ret = -ENXIO;
-
-       for (i = vma->vm_pgoff; i < count && uaddr < vma->vm_end; i++) {
-               ret = vm_insert_page(vma, uaddr, pages[i]);
-               if (ret)
-                       break;
-               uaddr += PAGE_SIZE;
-       }
-       return ret;
+       return vm_insert_range(vma, pages, PAGE_ALIGN(size) >> PAGE_SHIFT);
 }
 
 static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys,
--

1.9.1