From: Stefan Schmidt <s.schmidt@samsung.com>
Date: Thu, 13 Jun 2013 15:34:06 +0000 (+0100)
Subject: elm_gesture_layer: Fix potential NULL pointer dereference.
X-Git-Tag: submit/tizen_2.2/20130714.145026~41
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e42175057180abb452d192588cb6563c2a1199e6;p=framework%2Fuifw%2Felementary.git

elm_gesture_layer: Fix potential NULL pointer dereference.

If _pointer_even_make is false pe stays NULL and might get dereferenced
later. Instead we return now if _pointer_event_make fails.

Thanks to Tom for consulting with the gesture layer code.

Change-Id: I5050639235b9f2922c8ff242b7dc6641d0041952
---

diff --git a/src/lib/elm_gesture_layer.c b/src/lib/elm_gesture_layer.c
index 79d82ae..5e8db21 100644
--- a/src/lib/elm_gesture_layer.c
+++ b/src/lib/elm_gesture_layer.c
@@ -1346,8 +1346,10 @@ _event_process(void *data,
    evas_object_ref(data);
 
    /* Start testing candidate gesture from here */
-   if (_pointer_event_make(data, event_info, event_type, &_pe))
-     pe = &_pe;
+   if (!_pointer_event_make(data, event_info, event_type, &_pe))
+     return;
+
+   pe = &_pe;
 
    /* Test all the gestures */
    {