net: seeq: fix crash caused by not set dev.parent

The old MIPS implementation of dma_cache_sync() didn't use the dev argument,
but commit c9eb6172 ("dma-mapping: turn dma_cache_sync into a
dma_map_ops method") changed that, so we now need to set dev.parent.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/seeq/sgiseeq.c

@@ -735,6 +735,7 @@ static int sgiseeq_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, dev);
+	SET_NETDEV_DEV(dev, &pdev->dev);
 	sp = netdev_priv(dev);
 
 	/* Make private data page aligned */