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Revert "uio: fix vma io range check in mmap"

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This reverts commit ddb09754e6.

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>
This commit is contained in:
Greg Kroah-Hartman 2014-06-17 16:07:08 -07:00
parent 7171511eae
commit b29f680c4f
1 changed files with 1 additions and 1 deletions
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2
drivers/uio/uio.c
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@ -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;