From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752299AbcEUNXE (ORCPT ); Sat, 21 May 2016 09:23:04 -0400 Received: from mail-pf0-f196.google.com ([209.85.192.196]:32871 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751920AbcEUNXC (ORCPT ); Sat, 21 May 2016 09:23:02 -0400 From: Muhammad Falak R Wani To: Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org Subject: [PATCH] drivers: dma-coherent: use vma_pages(). Date: Sat, 21 May 2016 18:52:57 +0530 Message-Id: <1463836977-17009-1-git-send-email-falakreyaz@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Replace explicit computation of vma page count by a call to vma_pages() Signed-off-by: Muhammad Falak R Wani --- 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