Simply return early in case there are no updated rects.
Signed-off-by: Gerd Hoffmann <[email protected]>
---
hw/display/qxl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/display/qxl.c b/hw/display/qxl.c
index 919dc5c..f867cdf 100644
--- a/hw/display/qxl.c
+++ b/hw/display/qxl.c
@@ -893,7 +893,8 @@ static void interface_update_area_complete(QXLInstance *sin,
int qxl_i;
qemu_mutex_lock(&qxl->ssd.lock);
- if (surface_id != 0 || !qxl->render_update_cookie_num) {
+ if (surface_id != 0 || !num_updated_rects ||
+ !qxl->render_update_cookie_num) {
qemu_mutex_unlock(&qxl->ssd.lock);
return;
}
--
1.8.3.1
