diff options
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/lib/irqbypass.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/virt/lib/irqbypass.c b/virt/lib/irqbypass.c index e8d7c420db52..fdbf7ecc0c21 100644 --- a/virt/lib/irqbypass.c +++ b/virt/lib/irqbypass.c @@ -51,6 +51,10 @@ static int __connect(struct irq_bypass_producer *prod, if (prod->start) prod->start(prod); + if (!ret) { + prod->consumer = cons; + cons->producer = prod; + } return ret; } @@ -72,6 +76,9 @@ static void __disconnect(struct irq_bypass_producer *prod, cons->start(cons); if (prod->start) prod->start(prod); + + prod->consumer = NULL; + cons->producer = NULL; } /** @@ -145,6 +152,7 @@ void irq_bypass_unregister_producer(struct irq_bypass_producer *producer) list_for_each_entry(consumer, &consumers, node) { if (consumer->eventfd == producer->eventfd) { + WARN_ON_ONCE(producer->consumer != consumer); __disconnect(producer, consumer); break; } @@ -234,6 +242,7 @@ void irq_bypass_unregister_consumer(struct irq_bypass_consumer *consumer) list_for_each_entry(producer, &producers, node) { if (producer->eventfd == consumer->eventfd) { + WARN_ON_ONCE(consumer->producer != producer); __disconnect(producer, consumer); break; } |