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irqchip/loongson-eiointc: Fix return value checking of eiointc_index
Return value of function eiointc_index is int, however it is converted
into uint32_t and then compared smaller than zero, this will cause logic
problem.
Fixes: dd281e1a1a
("irqchip: Add Loongson Extended I/O interrupt controller support")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230811095805.2974722-2-maobibo@loongson.cn
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@ -144,7 +144,7 @@ static int eiointc_router_init(unsigned int cpu)
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int i, bit;
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uint32_t data;
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uint32_t node = cpu_to_eio_node(cpu);
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uint32_t index = eiointc_index(node);
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int index = eiointc_index(node);
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if (index < 0) {
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pr_err("Error: invalid nodemap!\n");
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