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linux/net/dsa/switch.c
Vladimir Oltean bcb9928a15 net: dsa: properly check for the bridge_leave methods in dsa_switch_bridge_leave() 
This was not caught because there is no switch driver which implements
the .port_bridge_join but not .port_bridge_leave method, but it should
nonetheless be fixed, as in certain conditions (driver development) it
might lead to NULL pointer dereference.

Fixes: f66a6a69f9 ("net: dsa: permit cross-chip bridging between all trees in the system")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-13 14:47:10 -07:00

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