KVM: fix crash on irqfd deassign

[firefly-linux-kernel-4.4.55.git] / virt / kvm / eventfd.c

diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 3656849f78a0b722236f25eefd58dac4fc839dcf..0d1fd5160adff73af128eb704996b3480083a685 100644 (file)
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -90,7 +90,7 @@ irqfd_shutdown(struct work_struct *work)
         * We know no new events will be scheduled at this point, so block
         * until all previously outstanding events have completed
         */
-       flush_work(&irqfd->inject);
+       flush_work_sync(&irqfd->inject);
 
        /*
         * It is now safe to release the object's resources