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net: ethernet: micrel: fix an error code

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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>
This commit is contained in:
Dan Carpenter 2015-08-14 11:54:59 +03:00 committed by David S. Miller
parent 8cb775bc0a
commit 2902bc66fa
1 changed files with 2 additions and 3 deletions
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5
drivers/net/ethernet/micrel/ks8842.c
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@ -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;
}