diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
index fd1171e48173f314fbc2f9413d39c80501a06482..a6000745bdaee53beb19bd941e2575d1113f5540 100644
--- a/hw/scsi/scsi-bus.c
+++ b/hw/scsi/scsi-bus.c
@@ -1841,11 +1841,13 @@ void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense)
 {
     SCSIRequest *req;
 
+    aio_context_acquire(blk_get_aio_context(sdev->conf.blk));
     while (!QTAILQ_EMPTY(&sdev->requests)) {
         req = QTAILQ_FIRST(&sdev->requests);
-        scsi_req_cancel(req);
+        scsi_req_cancel_async(req, NULL);
     }
-
+    blk_drain(sdev->conf.blk);
+    aio_context_release(blk_get_aio_context(sdev->conf.blk));
     scsi_device_set_ua(sdev, sense);
 }