Commit e15eec28 authored by Amit Kumar Salecha's avatar Amit Kumar Salecha Committed by David S. Miller

netxen: protect resource cleanup by rtnl lock

o context resources can be in used, while resource cleanup is in progress,
  during fw recover.
o Null pointer execption can occur in send_cmd_desc, if fw recovery
  module frees tx ring without rtnl lock.
o Same applies to ethtool register dump.
Signed-off-by: default avatarAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 41f3e0b1
...@@ -2240,7 +2240,9 @@ netxen_detach_work(struct work_struct *work) ...@@ -2240,7 +2240,9 @@ netxen_detach_work(struct work_struct *work)
netxen_nic_down(adapter, netdev); netxen_nic_down(adapter, netdev);
rtnl_lock();
netxen_nic_detach(adapter); netxen_nic_detach(adapter);
rtnl_unlock();
status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
......
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