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-rw-r--r--kernel/irq/handle.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 6ff84e6a954c..bdb180325551 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -54,14 +54,18 @@ static void warn_no_thread(unsigned int irq, struct irqaction *action)
54static void irq_wake_thread(struct irq_desc *desc, struct irqaction *action) 54static void irq_wake_thread(struct irq_desc *desc, struct irqaction *action)
55{ 55{
56 /* 56 /*
57 * Wake up the handler thread for this action. In case the 57 * In case the thread crashed and was killed we just pretend that
58 * thread crashed and was killed we just pretend that we 58 * we handled the interrupt. The hardirq handler has disabled the
59 * handled the interrupt. The hardirq handler has disabled the 59 * device interrupt, so no irq storm is lurking.
60 * device interrupt, so no irq storm is lurking. If the 60 */
61 if (action->thread->flags & PF_EXITING)
62 return;
63
64 /*
65 * Wake up the handler thread for this action. If the
61 * RUNTHREAD bit is already set, nothing to do. 66 * RUNTHREAD bit is already set, nothing to do.
62 */ 67 */
63 if ((action->thread->flags & PF_EXITING) || 68 if (test_and_set_bit(IRQTF_RUNTHREAD, &action->thread_flags))
64 test_and_set_bit(IRQTF_RUNTHREAD, &action->thread_flags))
65 return; 69 return;
66 70
67 /* 71 /*