gstaggregator: fix event use after free

https://bugzilla.gnome.org/show_bug.cgi?id=781017

1 files changed, 3 insertions, 8 deletions

diff --git a/gst-libs/gst/base/gstaggregator.c b/gst-libs/gst/base/gstaggregator.c
index 7e8c5be44..d693541ea 100644
--- a/gst-libs/gst/base/gstaggregator.c
+++ b/gst-libs/gst/base/gstaggregator.c
@@ -2351,17 +2351,12 @@ gst_aggregator_pad_event_func (GstPad * pad, GstObject * parent,
   }
 
   if (event) {
+    gboolean is_caps = (GST_EVENT_TYPE (event) == GST_EVENT_CAPS);
+
     if (!klass->sink_event (self, aggpad, event)) {
       /* Copied from GstPad to convert boolean to a GstFlowReturn in
        * the event handling func */
-      switch (GST_EVENT_TYPE (event)) {
-        case GST_EVENT_CAPS:
-          ret = GST_FLOW_NOT_NEGOTIATED;
-          break;
-        default:
-          ret = GST_FLOW_ERROR;
-          break;
-      }
+      ret = is_caps ? GST_FLOW_NOT_NEGOTIATED : GST_FLOW_ERROR;
     }
   }