cpm_uart: Pass actual dev ptr to dma_* in ucc and cpm_uart serial

We're currently passing NULL, and really shouldn't be.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/drivers/serial/ucc_uart.c b/drivers/serial/ucc_uart.c
index 5c5d18d..539c933 100644
--- a/drivers/serial/ucc_uart.c
+++ b/drivers/serial/ucc_uart.c
@@ -1009,7 +1009,7 @@
 	rx_size = L1_CACHE_ALIGN(qe_port->rx_nrfifos * qe_port->rx_fifosize);
 	tx_size = L1_CACHE_ALIGN(qe_port->tx_nrfifos * qe_port->tx_fifosize);
 
-	bd_virt = dma_alloc_coherent(NULL, rx_size + tx_size, &bd_dma_addr,
+	bd_virt = dma_alloc_coherent(port->dev, rx_size + tx_size, &bd_dma_addr,
 		GFP_KERNEL);
 	if (!bd_virt) {
 		dev_err(port->dev, "could not allocate buffer descriptors\n");
@@ -1051,7 +1051,7 @@
 		container_of(port, struct uart_qe_port, port);
 	struct ucc_slow_private *uccs = qe_port->us_private;
 
-	dma_free_coherent(NULL, qe_port->bd_size, qe_port->bd_virt,
+	dma_free_coherent(port->dev, qe_port->bd_size, qe_port->bd_virt,
 			  qe_port->bd_dma_addr);
 
 	ucc_slow_free(uccs);