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authorIngo Molnar <mingo@elte.hu>2008-07-07 08:01:26 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-07 08:01:26 +0200
commit032f82786f9be4635acaa5f77feca175a4ac5fe1 (patch)
tree11ce43c1086d3dec43c92b0a2cc740240b338fb7 /arch/mips/sgi-ip32/ip32-irq.c
parent46ac22bab42cc868b9c1d0e915ddbc8e8065a44d (diff)
parentb7279469d66b55119784b8b9529c99c1955fe747 (diff)
Merge commit 'v2.6.26-rc9' into sched/devel
Diffstat (limited to 'arch/mips/sgi-ip32/ip32-irq.c')
-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)
BUILD_BUG_ON(MACEISA_SERIAL2_RDMAOR_IRQ - MACEISA_AUDIO_SW_IRQ != 31);
crime_int = crime->istat & crime_mask;
+
+ /* crime sometime delivers spurious interrupts, ignore them */
+ if (unlikely(crime_int == 0))
+ return;
+
irq = MACE_VID_IN1_IRQ + __ffs(crime_int);
if (crime_int & CRIME_MACEISA_INT_MASK) {