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bcb9928a15
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: f66a6a69f97a ("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>