From 88e98da311f4bbeb035c6fdbfedf0c014a833ae5 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 17 Jun 2014 16:07:08 -0700
Subject: [PATCH] Revert "uio: fix vma io range check in mmap"

This reverts commit c3047436833483a5a927899e7ab0a2dfd4a8a9b3.

Linus objected to this originally, I can see why it might be needed, but
given that no one spoke up defending this patch, I'm going to revert it.

If you have hardware that requires this change, please speak up in the
future and defend the patch.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Bin Wang <binw@marvell.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Cc: Norbert Ciosek <norbertciosek@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index e371f5af11f5b..a673e5b6a2e0b 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -655,7 +655,7 @@ static int uio_mmap_physical(struct vm_area_struct *vma)
 
 	if (mem->addr & ~PAGE_MASK)
 		return -ENODEV;
-	if (vma->vm_end - vma->vm_start > PAGE_ALIGN(mem->size))
+	if (vma->vm_end - vma->vm_start > mem->size)
 		return -EINVAL;
 
 	vma->vm_ops = &uio_physical_vm_ops;
-- 
2.39.5