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dpaa2-eth: Initialize mutex used in one step timestamping path

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commit 07dd44852be89386ab12210df90a2d78779f3bff upstream.

1588 Single Step Timestamping code path uses a mutex to
enforce atomicity for two events:
- update of ptp single step register
- transmit ptp event packet

Before this patch the mutex was not initialized. This
caused unexpected crashes in the Tx function.

Fixes: c55211892f463 ("dpaa2-eth: support PTP Sync packet one-step timestamping")
Signed-off-by: Radu Bulie <radu-andrei.bulie@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Radu Bulie 2022-02-14 19:45:34 +02:00 committed by Greg Kroah-Hartman
parent 50f3b00d4c
commit 016e3ca9c5
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
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@ -4225,7 +4225,7 @@ static int dpaa2_eth_probe(struct fsl_mc_device *dpni_dev)
}
INIT_WORK(&priv->tx_onestep_tstamp, dpaa2_eth_tx_onestep_tstamp);
mutex_init(&priv->onestep_tstamp_lock);
skb_queue_head_init(&priv->tx_skbs);
/* Obtain a MC portal */