9p/trans_virtio: discard zero-length reply

[pandora-kernel.git] / net / 9p / trans_virtio.c

diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 0a05ac1..a107265 100644 (file)
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -163,7 +163,8 @@ static void req_done(struct virtqueue *vq)
                P9_DPRINTK(P9_DEBUG_TRANS, ": lookup tag %d\n", rc->tag);
                req = p9_tag_lookup(chan->client, rc->tag);
                req->status = REQ_STATUS_RCVD;
-               p9_client_cb(chan->client, req);
+               if (len)
+                       p9_client_cb(chan->client, req);
        }
 }