replace dma_pool_alloc and memset with a single call to dma_pool_zalloc
Signed-off-by: NSaurabh Sengar <saurabh.truth@gmail.com>
Acked-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>