[PATCH 32/67] KVM: x86: Nullify irqfd->producer after updating IRTEs

[Sean Christopherson]

Nullify irqfd->producer (when it's going away) _after_ updating IRTEs so
that the producer can be queried during the update.

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
 arch/x86/kvm/x86.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 52d8d0635603..b8b259847d05 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -13608,7 +13608,6 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons,
 	 * int this case doesn't want to receive the interrupts.
 	*/
 	spin_lock_irq(&kvm->irqfds.lock);
-	irqfd->producer = NULL;
 
 	if (irqfd->irq_entry.type == KVM_IRQ_ROUTING_MSI) {
 		ret = kvm_x86_call(pi_update_irte)(irqfd, irqfd->kvm, prod->irq,
@@ -13617,6 +13616,7 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons,
 			pr_info("irq bypass consumer (token %p) unregistration fails: %d\n",
 				irqfd->consumer.token, ret);
 	}
+	irqfd->producer = NULL;
 
 	spin_unlock_irq(&kvm->irqfds.lock);
 
-- 
2.49.0.504.g3bcea36a83-goog