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net: fec: use managed DMA API functions to allocate BD ring

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So it gets freed when the device is going away.
This fixes a DMA memory leak on driver probe() fail and driver
remove().

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lucas Stach 2015-07-23 16:06:19 +02:00 committed by David S. Miller
parent 4228883049
commit c0a1a0a698
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/freescale/fec_main.c
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@ -3115,8 +3115,8 @@ static int fec_enet_init(struct net_device *ndev)
fep->bufdesc_size;
/* Allocate memory for buffer descriptors. */
cbd_base = dma_alloc_coherent(NULL, bd_size, &bd_dma,
GFP_KERNEL);
cbd_base = dmam_alloc_coherent(&fep->pdev->dev, bd_size, &bd_dma,
GFP_KERNEL);
if (!cbd_base) {
return -ENOMEM;
}