HSI: cmt_speech: use vma_pages().

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: Sebastian Reichel <sre@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/hsi/clients/cmt_speech.c b/drivers/hsi/clients/cmt_speech.c
index 95638df73d1c..b16cfa4b2360 100644
--- a/drivers/hsi/clients/cmt_speech.c
+++ b/drivers/hsi/clients/cmt_speech.c
@@ -1275,7 +1275,7 @@ static int cs_char_mmap(struct file *file, struct vm_area_struct *vma)
         if (vma->vm_end < vma->vm_start)
                 return -EINVAL;
 
-        if (((vma->vm_end - vma->vm_start) >> PAGE_SHIFT) != 1)
+        if (vma_pages(vma) != 1)
                 return -EINVAL;
 
         vma->vm_flags |= VM_IO | VM_DONTDUMP | VM_DONTEXPAND;