tree 56ad97828772833babcd5a813a03abc4ea87c973
parent 5bf7d295610a0789dc649e4e45714fecd7d042b4
author H Hartley Sweeten <hsweeten@visionengravers.com> 1421085351 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1421533519 -0800

staging: comedi: ni_at_a2150: 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>