From: Amit Shah <amit.shah@redhat.com>
Date: Tue, 27 Apr 2010 12:34:01 +0000 (+0530)
Subject: virtio-serial: Remove redundant check for 0-sized write request
X-Git-Tag: v0.13.0-rc0~656
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e30f328c7429d4e891ce6da26af95c607f392739;p=thirdparty%2Fqemu.git

virtio-serial: Remove redundant check for 0-sized write request

The check for a 0-sized write request to a guest port is not necessary;
the while loop below won't be executed in this case and all will be
fine.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---

diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c
index 8efba0bf850..c1d98517880 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -91,9 +91,6 @@ static size_t write_to_port(VirtIOSerialPort *port,
     if (!virtio_queue_ready(vq)) {
         return 0;
     }
-    if (!size) {
-        return 0;
-    }
 
     while (offset < size) {
         int i;