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由 Andrew Lunn 提交于
A port is not necessarily assigned to a netdev. And a port does not need to be a member of a bridge. So when iterating over all ports, check before using the netdev and bridge_dev for a port. Otherwise we dereference a NULL pointer. Fixes: da9c359e ("net: dsa: mv88e6xxx: check hardware VLAN in use") Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Reviewed-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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