[PATCH 3/4] virtio: stop ioeventfd on reset

[Paolo Bonzini]

All calls to virtio_bus_reset are preceded by virtio_bus_stop_ioeventfd,
move the call in virtio_bus_reset: that makes sense and clarifies
that the vdc->reset function is called with ioeventfd already stopped.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/s390x/virtio-ccw.c   | 1 -
 hw/virtio/virtio-bus.c  | 1 +
 hw/virtio/virtio-mmio.c | 4 +---
 hw/virtio/virtio-pci.c  | 1 -
 4 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index 066a387802..e33e5207ab 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -253,7 +253,6 @@ static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev)
 {
     CcwDevice *ccw_dev = CCW_DEVICE(dev);
 
-    virtio_ccw_stop_ioeventfd(dev);
     virtio_bus_reset(&dev->bus);
     if (dev->indicators) {
         release_indicator(&dev->routes.adapter, dev->indicators);
diff --git a/hw/virtio/virtio-bus.c b/hw/virtio/virtio-bus.c
index d7ec023adf..896feb37a1 100644
--- a/hw/virtio/virtio-bus.c
+++ b/hw/virtio/virtio-bus.c
@@ -104,6 +104,7 @@ void virtio_bus_reset(VirtioBusState *bus)
     VirtIODevice *vdev = virtio_bus_get_device(bus);
 
     DPRINTF("%s: reset device.\n", BUS(bus)->name);
+    virtio_bus_stop_ioeventfd(bus);
     if (vdev != NULL) {
         virtio_reset(vdev);
     }
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c
index 41a35d31c8..6d81a26473 100644
--- a/hw/virtio/virtio-mmio.c
+++ b/hw/virtio/virtio-mmio.c
@@ -376,8 +376,7 @@ static void virtio_mmio_write(void *opaque, hwaddr offset, 
uint64_t value,
             return;
         }
         if (value == 0) {
-            virtio_mmio_stop_ioeventfd(proxy);
-            virtio_reset(vdev);
+            virtio_bus_reset(&vdev->bus);
         } else {
             virtio_queue_set_addr(vdev, vdev->queue_sel,
                                   value << proxy->guest_page_shift);
@@ -628,7 +627,6 @@ static void virtio_mmio_reset(DeviceState *d)
     VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d);
     int i;
 
-    virtio_mmio_stop_ioeventfd(proxy);
     virtio_bus_reset(&proxy->bus);
     proxy->host_features_sel = 0;
     proxy->guest_features_sel = 0;
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 0566ad7d00..45327f0b31 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1945,7 +1945,6 @@ static void virtio_pci_reset(DeviceState *qdev)
     PCIDevice *dev = PCI_DEVICE(qdev);
     int i;
 
-    virtio_pci_stop_ioeventfd(proxy);
     virtio_bus_reset(bus);
     msix_unuse_all_vectors(&proxy->pci_dev);
 
-- 
2.36.1