fec: remove unnecessary cast

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index f8396fb..e03b177 100644 (file)
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -1660,11 +1660,10 @@ int __init fec_enet_init(struct net_device *dev, int index)
        struct bufdesc *bdp, *cbd_base;
        int             i, j;
 
-       /* Allocate memory for buffer descriptors.
-       */
-       mem_addr = (unsigned long)dma_alloc_coherent(NULL, PAGE_SIZE,
-                       &fep->bd_dma, GFP_KERNEL);
-       if (mem_addr == 0) {
+       /* Allocate memory for buffer descriptors. */
+       cbd_base = dma_alloc_coherent(NULL, PAGE_SIZE, &fep->bd_dma,
+                       GFP_KERNEL);
+       if (!cbd_base) {
                printk("FEC: allocate descriptor memory failed?\n");
                return -ENOMEM;
        }
@@ -1698,10 +1697,7 @@ int __init fec_enet_init(struct net_device *dev, int index)
        }
 #endif
 
-       cbd_base = (struct bufdesc *)mem_addr;
-
-       /* Set receive and transmit descriptor base.
-       */
+       /* Set receive and transmit descriptor base. */
        fep->rx_bd_base = cbd_base;
        fep->tx_bd_base = cbd_base + RX_RING_SIZE;