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6f1995523a
The function fib6_walk_continue() cannot return a positive value when called from register_fib_notifier(), but ignoring causes static analyzer to generate warnings in users of register_fib_notifier() that try to convert returned error code to pointer with ERR_PTR(). Handle such case by explicitly checking for positive error values and converting them to -EINVAL in fib6_tables_dump(). Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Suggested-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>