Commit b29f680c authored Jun 17, 2014 by Greg Kroah-Hartman

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



This reverts commit ddb09754.

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>

parent 7171511e

drivers/uio/uio.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

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