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drivers: dma-coherent: use vma_pages().

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Replace explicit computation of vma page count by a call to
vma_pages()

Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Muhammad Falak R Wani 2016-05-21 18:52:57 +05:30 committed by Greg Kroah-Hartman
parent 03aca7b260
commit e688f14430
1 changed files with 1 additions and 1 deletions
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2
drivers/base/dma-coherent.c
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@ -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;