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-rw-r--r--block/nbd-client.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/block/nbd-client.c b/block/nbd-client.c
index ac93c4c0d0..72651dcdb1 100644
--- a/block/nbd-client.c
+++ b/block/nbd-client.c
@@ -161,6 +161,8 @@ static int nbd_co_send_request(BlockDriverState *bs,
                                        NULL) < 0) {
                 rc = -EIO;
             }
+        } else if (rc >= 0) {
+            rc = -EIO;
         }
         qio_channel_set_cork(s->ioc, false);
     } else {