[PATCH v1 5/9] wctablet: add appropriate unregister handler

[Maxim Davydov <maxim.davydov@openvz.org>]

Attempt to finalize msmouse after initalization brings to segmentation
fault in QTAILQ_REMOVE.

Signed-off-by: Maxim Davydov <maxim.davydov@openvz.org>
---
 chardev/wctablet.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/chardev/wctablet.c b/chardev/wctablet.c
index e8b292c43c..43bdf6b608 100644
--- a/chardev/wctablet.c
+++ b/chardev/wctablet.c
@@ -319,7 +319,9 @@ static void wctablet_chr_finalize(Object *obj)
 {
     TabletChardev *tablet = WCTABLET_CHARDEV(obj);
 
-    qemu_input_handler_unregister(tablet->hs);
+    if (tablet->hs) {
+        qemu_input_handler_unregister(tablet->hs);
+    }
 }
 
 static void wctablet_chr_open(Chardev *chr,
-- 
2.31.1