hw/vfio/platform: Init the interrupt mutex

Add the initialization of the mutex protecting the interrupt list.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

hw/vfio/platform.c

@@ -643,6 +643,8 @@ static void vfio_platform_realize(DeviceState *dev, Error **errp)
     vbasedev->dev = dev;
     vbasedev->ops = &vfio_platform_ops;
 
+    qemu_mutex_init(&vdev->intp_mutex);
+
     trace_vfio_platform_realize(vbasedev->sysfsdev ?
                                 vbasedev->sysfsdev : vbasedev->name,
                                 vdev->compat);