Patchwork [v5,10/17] virtio-serial: Send out guest data to ports only if port is opened

login
register
mail settings
Submitter Amit Shah
Date April 14, 2010, 5:28 a.m.
Message ID <1271222917-7803-11-git-send-email-amit.shah@redhat.com>
Download mbox | patch
Permalink /patch/50108/
State New
Headers show

Comments

Amit Shah - April 14, 2010, 5:28 a.m.
Data should be written only when ports are open.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
---
 hw/virtio-serial-bus.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

Patch

diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c
index 3a09f0d..6befd4d 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -335,6 +335,11 @@  static void handle_output(VirtIODevice *vdev, VirtQueue *vq)
             goto next_buf;
         }
 
+	if (!port->host_connected) {
+            ret = 0;
+            goto next_buf;
+        }
+
         /*
          * A port may not have any handler registered for consuming the
          * data that the guest sends or it may not have a chardev associated