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Date: Sat, 21 May 2016 18:52:57 +0530 From: Muhammad Falak R Wani <falakreyaz@...il.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: linux-kernel@...r.kernel.org Subject: [PATCH] drivers: dma-coherent: use vma_pages(). Replace explicit computation of vma page count by a call to vma_pages() Signed-off-by: Muhammad Falak R Wani <falakreyaz@...il.com> --- drivers/base/dma-coherent.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c index bdf28f7..db122a0 100644 --- a/drivers/base/dma-coherent.c +++ b/drivers/base/dma-coherent.c @@ -261,7 +261,7 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma, (mem->virt_base + (mem->size << PAGE_SHIFT))) { unsigned long off = vma->vm_pgoff; int start = (vaddr - mem->virt_base) >> PAGE_SHIFT; - int user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + int user_count = vma_pages(vma); int count = size >> PAGE_SHIFT; *ret = -ENXIO; -- 1.9.1
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