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Commit 937071c1 authored by Thierry Reding's avatar Thierry Reding Committed by David S. Miller
Browse files

net: stmmac: Check for DMA mapping errors 



When DMA mapping an SKB fragment, the mapping must be checked for
errors, otherwise the DMA debug code will complain upon unmap.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0ad2be79

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

+2 −0
Original line number Diff line number Diff line
@@ -2079,6 +2079,8 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev) 
		des = skb_frag_dma_map(priv->device, frag, 0,

				       skb_frag_size(frag),

				       DMA_TO_DEVICE);

		if (dma_mapping_error(priv->device, des))

			goto dma_map_err;



		stmmac_tso_allocator(priv, des, skb_frag_size(frag),

				     (i == nfrags - 1));