Commit f4a0be84 authored by Claudiu Manoil's avatar Claudiu Manoil Committed by David S. Miller

enetc: Fix NULL dma address unmap for Tx BD extensions

For the unlikely case of TxBD extensions (i.e. ptp)
the driver tries to unmap the tx_swbd corresponding
to the extension, which is bogus as it has no buffer
attached.
Signed-off-by: default avatarClaudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cb07d915
......@@ -313,7 +313,9 @@ static bool enetc_clean_tx_ring(struct enetc_bdr *tx_ring, int napi_budget)
while (bds_to_clean && tx_frm_cnt < ENETC_DEFAULT_TX_WORK) {
bool is_eof = !!tx_swbd->skb;
enetc_unmap_tx_buff(tx_ring, tx_swbd);
if (likely(tx_swbd->dma))
enetc_unmap_tx_buff(tx_ring, tx_swbd);
if (is_eof) {
napi_consume_skb(tx_swbd->skb, napi_budget);
tx_swbd->skb = NULL;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment