From 2f5ae772c62499873a0da8fffa03594753eb8fa8 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 8 Jun 2016 16:11:41 +0200
Subject: [PATCH] qxl: handle no updates in interface_update_area_complete
Simply return early in case there are no updated rects.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1465395101-13580-1-git-send-email-kraxel@redhat.com
---
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 ab96f24a02..47cc6f478a 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;
}
--
2.30.2