LS1046A IRQ interrupt driver error

[Gyosun]

Hello,

I am writing IRQ1(F15) interrupt driver in LS1046A.
num = 164 - 32;
ret = request_irq(num, (irq_handler_t) irq1_handler, IRQF_TRIGGER_RISING, "irq1_handler", NULL);
The return value is output as -22.
Thank you in advance.

Best Regards.
Gyosun.