From: Sandhya Bankar <bankarsandhya512@gmail.com>
Date: Sun, 6 Mar 2016 07:05:29 +0000 (+0530)
Subject: Staging: comedi: Use predefined macro offset_in_page() instead of (addr & ~PAGE_MASK).
X-Git-Tag: v4.6-rc1~103^2~235
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=44b8c793fc0d63060c6c87f0af4f9b367e2ec4fc;p=karo-tx-linux.git

Staging: comedi: Use predefined macro offset_in_page() instead of (addr & ~PAGE_MASK).

Use predefined macro offset_in_page() instead of (addr & ~PAGE_MASK).

Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index d1cf6a1c92a4..7c7b477b0f28 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2224,7 +2224,7 @@ static int comedi_mmap(struct file *file, struct vm_area_struct *vma)
 		retval = -EFAULT;
 		goto done;
 	}
-	if (size & (~PAGE_MASK)) {
+	if (offset_in_page(size)) {
 		retval = -EFAULT;
 		goto done;
 	}