X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Flttv%2Fmodules%2Fgui%2Fcontrolflow%2Feventhooks.c;h=e2a42d4fea5a5fa6c4a718c5b17387f448572d9c;hb=6cec4cd266bde25f87dad0a059fd98c7381eb8c2;hp=72986339f98a96f981eeb0ac2df1eab2af398548;hpb=29e34d6c3b4a9fa6fb181647d224efaac2461ffb;p=lttv.git

diff --git a/ltt/branches/poly/lttv/modules/gui/controlflow/eventhooks.c b/ltt/branches/poly/lttv/modules/gui/controlflow/eventhooks.c
index 72986339..e2a42d4f 100644
--- a/ltt/branches/poly/lttv/modules/gui/controlflow/eventhooks.c
+++ b/ltt/branches/poly/lttv/modules/gui/controlflow/eventhooks.c
@@ -182,7 +182,7 @@ GtkWidget *
 h_guicontrolflow(Tab *tab)
 {
   g_info("h_guicontrolflow, %p", tab);
-  ControlFlowData *control_flow_data = guicontrolflow() ;
+  ControlFlowData *control_flow_data = guicontrolflow(tab) ;
   
   control_flow_data->tab = tab;
   
@@ -1926,6 +1926,12 @@ gint traceset_notify(void *hook_data, void *call_data)
   ControlFlowData *control_flow_data = (ControlFlowData*) hook_data;
   Drawing_t *drawing = control_flow_data->drawing;
 
+  if(unlikely(drawing->gc == NULL)) {
+    return FALSE;
+  }
+  if(drawing->dotted_gc == NULL) {
+    return FALSE;
+  }
 
   drawing_clear(control_flow_data->drawing);
   processlist_clear(control_flow_data->process_list);