tree b48c92582e30ea7c595f9ddc5f52e9a77e3b73ac
parent 6e89008b06c344b49e27febdeb5fc7b84d35fb25
author H Hartley Sweeten <hsweeten@visionengravers.com> 1421085344 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1421533519 -0800

staging: comedi: das1800: remove VIRT_TO_BUS dependancy

Use dma_{alloc,free}_coherent() to allocate and free the DMA buffers.
This removes the dependancy on VIRT_TO_BUS.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>