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-rw-r--r--arch/mips/sgi-ip32/ip32-irq.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
index b0ea0e43ba48..0d6b6663d5f6 100644
--- a/arch/mips/sgi-ip32/ip32-irq.c
+++ b/arch/mips/sgi-ip32/ip32-irq.c
@@ -425,6 +425,11 @@ static void ip32_irq0(void)
425 BUILD_BUG_ON(MACEISA_SERIAL2_RDMAOR_IRQ - MACEISA_AUDIO_SW_IRQ != 31); 425 BUILD_BUG_ON(MACEISA_SERIAL2_RDMAOR_IRQ - MACEISA_AUDIO_SW_IRQ != 31);
426 426
427 crime_int = crime->istat & crime_mask; 427 crime_int = crime->istat & crime_mask;
428
429 /* crime sometime delivers spurious interrupts, ignore them */
430 if (unlikely(crime_int == 0))
431 return;
432
428 irq = MACE_VID_IN1_IRQ + __ffs(crime_int); 433 irq = MACE_VID_IN1_IRQ + __ffs(crime_int);
429 434
430 if (crime_int & CRIME_MACEISA_INT_MASK) { 435 if (crime_int & CRIME_MACEISA_INT_MASK) {