char_device: Properly update buffer status when leaving the write loop on stop

Before this patch the write-loop in spice_char_device_write_to_device would
break on running becoming 0, after having written some data, without updating
the buffer status, causing the same data to be written *again* when started.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/server/char_device.c b/server/char_device.c
index e07eda1f..368c9bc0 100644
--- a/server/char_device.c
+++ b/server/char_device.c
@@ -438,7 +438,7 @@ static int spice_char_device_write_to_device(SpiceCharDeviceState *dev)
     core->timer_cancel(dev->write_to_dev_timer);
 
     sif = SPICE_CONTAINEROF(dev->sin->base.sif, SpiceCharDeviceInterface, base);
-    while (1) {
+    while (dev->running) {
         uint32_t write_len;
 
         if (!dev->cur_write_buf) {
@@ -454,9 +454,6 @@ static int spice_char_device_write_to_device(SpiceCharDeviceState *dev)
         write_len = dev->cur_write_buf->buf + dev->cur_write_buf->buf_used -
                     dev->cur_write_buf_pos;
         n = sif->write(dev->sin, dev->cur_write_buf_pos, write_len);
-        if (!dev->running) {
-            break;
-        }
         if (n <= 0) {
             break;
         }