net: ethernet: micrel: fix an error code
authorDan Carpenter <dan.carpenter@oracle.com>
Fri, 14 Aug 2015 08:54:59 +0000 (11:54 +0300)
committerDavid S. Miller <davem@davemloft.net>
Mon, 17 Aug 2015 19:23:22 +0000 (12:23 -0700)
The dma_mapping_error() function returns true or false.  We should
return -ENOMEM if it there is a dma mapping error.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/micrel/ks8842.c

index f78909a00f150edfd76065b2b993d9660edaebdd..09d2e16fd6b00bfdd0c20fc10c64abd03c29a935 100644 (file)
@@ -952,9 +952,8 @@ static int ks8842_alloc_dma_bufs(struct net_device *netdev)
 
        sg_dma_address(&tx_ctl->sg) = dma_map_single(adapter->dev,
                tx_ctl->buf, DMA_BUFFER_SIZE, DMA_TO_DEVICE);
-       err = dma_mapping_error(adapter->dev,
-               sg_dma_address(&tx_ctl->sg));
-       if (err) {
+       if (dma_mapping_error(adapter->dev, sg_dma_address(&tx_ctl->sg))) {
+               err = -ENOMEM;
                sg_dma_address(&tx_ctl->sg) = 0;
                goto err;
        }