[MIPS] IP32: Don't ignore request_irq's return value.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/sgi-ip32/ip32-reset.c

@@ -195,7 +195,8 @@ static __init int ip32_reboot_setup(void)
 	blink_timer.function = blink_timeout;
 	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
 
-	request_irq(MACEISA_RTC_IRQ, ip32_rtc_int, 0, "rtc", NULL);
+	if (request_irq(MACEISA_RTC_IRQ, ip32_rtc_int, 0, "rtc", NULL))
+		panic("Can't allocate MACEISA RTC IRQ");
 
 	return 0;
 }