net: ethernet: mtk_eth_soc: fix build_skb cleanup

In case build_skb fails, call skb_free_frag on the correct pointer. Also
update the DMA structures with the new mapping before exiting, because
the mapping was successful

Suggested-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ilya Lipnitskiy 2021-04-22 22:20:56 -07:00 • committed by David S. Miller
commit 787082ab9f