From 54abd5725db8e452ef3ed5748e3cc07be10a128b Mon Sep 17 00:00:00 2001 From: Radu Bulie Date: Mon, 14 Feb 2022 19:45:34 +0200 Subject: [PATCH] dpaa2-eth: Initialize mutex used in one step timestamping path 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 Reviewed-by: Ioana Ciornei Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index 70c8dd6cf3508..118933efb1587 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -4338,7 +4338,7 @@ 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); priv->rx_copybreak = DPAA2_ETH_DEFAULT_COPYBREAK;