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23 October 2021, 00:29:24 UTC
Revision fa2d8ff4e3522b4e05f590575d3eb8087f3a8cdc authored by Thomas Graf on 30 March 2015, 11:57:41 UTC, committed by David S. Miller on 31 March 2015, 19:59:50 UTC 
openvswitch: Return vport module ref before destruction
 
Return module reference before invoking the respective vport
->destroy() function. This is needed as ovs_vport_del() is not
invoked inside an RCU read side critical section so the kfree
can occur immediately before returning to ovs_vport_del().

Returning the module reference before ->destroy() is safe because
the module unregistration is blocked on ovs_lock which we hold
while destroying the datapath.

Fixes: 62b9c8d0372d ("ovs: Turn vports with dependencies into separate modules")
Reported-by: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 5899f04
History
Tip revision: fa2d8ff4e3522b4e05f590575d3eb8087f3a8cdc authored by Thomas Graf on 30 March 2015, 11:57:41 UTC
openvswitch: Return vport module ref before destruction
Tip revision: fa2d8ff
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