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enetc: Fix an off by one in enetc_setup_tc_txtime() 

The priv->tx_ring[] has 16 elements but only priv->num_tx_rings are
set up, the rest are NULL.  This ">" comparison should be ">=" to avoid
a potential crash.

Fixes: 0d08c9ec7d ("enetc: add support time specific departure base on the qos etf")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2020-01-07 16:11:43 +03:00 committed by David S. Miller
parent cbefe2c957
commit 0d6e5bfc9c
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/freescale/enetc/enetc_qos.c
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@ -315,7 +315,7 @@ int enetc_setup_tc_txtime(struct net_device *ndev, void *type_data)
tc = qopt->queue;
if (tc < 0 || tc > priv->num_tx_rings)
if (tc < 0 || tc >= priv->num_tx_rings)
return -EINVAL;
/* Do not support TXSTART and TX CSUM offload simutaniously */