`while (limit-- >= 0)' reaches -2 after the loop upon timeout.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Acked-by: NMaxime Bizon <mbizon@freebox.fr>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NMaxime Bizon <mbizon@freebox.fr>
Signed-off-by: NFlorian Fainelli <florian@openwrt.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>