irq_procfs: fix divide 0 error
Signed-off-by: ligd <liguiding1@xiaomi.com>
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@ -206,6 +206,7 @@ static int irq_callback(int irq, FAR struct irq_info_s *info,
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* rate = <interrupt-count> * TICKS_PER_SEC / elapsed
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*/
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elapsed = elapsed ? elapsed : 1;
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intpart = (unsigned int)((copy.count * TICK_PER_SEC) / elapsed);
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if (intpart >= 10000)
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{
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