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net/ibmvnic: Fix RTNL deadlock during device reset 

Commit a5681e20b5 ("net/ibmnvic: Fix deadlock problem
in reset") made the change to hold the RTNL lock during
driver reset but still calls netdev_notify_peers, which
results in a deadlock. Instead, use call_netdevice_notifiers,
which is functionally the same except that it does not
take the RTNL lock again.

Fixes: a5681e20b5 ("net/ibmnvic: Fix deadlock problem in reset")
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Thomas Falcon 2018-11-30 10:59:08 -06:00 committed by David S. Miller
parent e3f787189e
commit 986103e792
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/ibm/ibmvnic.c
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@ -1859,7 +1859,7 @@ static int do_reset(struct ibmvnic_adapter *adapter,
if (adapter->reset_reason != VNIC_RESET_FAILOVER &&
adapter->reset_reason != VNIC_RESET_CHANGE_PARAM)
netdev_notify_peers(netdev);
call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, netdev);
netif_carrier_on(netdev);