scsi: move status to SCSIRequest.

Also add and use the scsi_req_complete() helper function for calling the
completion callback.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c
index 666ca3c41c..2e4fd3874c 100644
--- a/hw/scsi-bus.c
+++ b/hw/scsi-bus.c
@@ -132,6 +132,7 @@ SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t l
     req->dev = d;
     req->tag = tag;
     req->lun = lun;
+    req->status = -1;
     QTAILQ_INSERT_TAIL(&d->requests, req, next);
     return req;
 }
@@ -362,3 +363,11 @@ int scsi_req_parse(SCSIRequest *req, uint8_t *buf)
     req->cmd.lba = scsi_req_lba(req);
     return 0;
 }
+
+void scsi_req_complete(SCSIRequest *req)
+{
+    assert(req->status != -1);
+    req->bus->complete(req->bus, SCSI_REASON_DONE,
+                       req->tag,
+                       req->status);
+}