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ice: set tx_tstamps when creating new Tx rings via ethtool

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When the user changes the number of queues via ethtool, the driver
allocates new rings. This allocation did not initialize tx_tstamps. This
results in the tx_tstamps field being zero (due to kcalloc allocation), and
would result in a NULL pointer dereference when attempting a transmit
timestamp on the new ring.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Jacob Keller 2022-07-27 16:15:57 -07:00 committed by Tony Nguyen
parent 7ebfc85e2c
commit b3b173745c
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/intel/ice/ice_ethtool.c
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@ -2826,6 +2826,7 @@ ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring,
tx_rings[i].count = new_tx_cnt;
tx_rings[i].desc = NULL;
tx_rings[i].tx_buf = NULL;
tx_rings[i].tx_tstamps = &pf->ptp.port.tx;
err = ice_setup_tx_ring(&tx_rings[i]);
if (err) {
while (i--)